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Valtrex for Cold Sores User Reviews

Valtrex has an average rating of 9.1 out of 10 from a total of 155 reviews for the treatment of Cold Sores. 89% of reviewers reported a positive experience, while 5% reported a negative experience.

Valtrex rating summary

9.1/10 average rating

155 ratings from 164 user reviews.

Compare all 24 medications used in the treatment of Cold Sores.

10
68%
9
17%
8
5%
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3%
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1%
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Reviews for Valtrex

  • Despe...
  • Taken for less than 1 month
  • May 7, 2013

"You should only read this review if you have a cold sore that you need to have removed ASAP. I am 18 and in high school, so there is nothing worse than walking around school with one. In my situation, I woke up in the middle of Monday morning with a tingle on my lip. Prom is Friday. I was in panic mode because mine usually last 1-2 weeks. In this desperate measure, my mom called and got prescribed Valtrex. I didn't think it would work because the cold sore was completely out and I missed the pre-forming stage. I took 2 Valtrex on Monday at around 2 p.m and another 2 before I went to bed. I also applied Denavir. It is Tuesday night and the cold sore is completely gone! It's a miracle!"

10 / 10
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  • Anon
  • Taken for 1 to 2 years
  • October 5, 2019

"I’m 26. I was diagnosed with Herpes 2 years ago. This is my third time having an outbreak on my face, normally it’s just one cold sore that is gone within days thanks to Valtrex. This time, I’m broken out from my nose to my chin. Bumps everywhere! On my lips, above my lips. This is also the first time I’ve experienced the horrible pain associated with oral herpes. It’s dry and feels scabby. I’m three days in, and actually went to urgent care because my mouth was swollen this morning. The doctor told me to take my 500mg Valtrex 3x a day. I’m praying this clears soon because I’m at the point where I don’t want any human interactions, I’m so embarrassed and feel so ugly. Glad to see there’s others out there struggling just like me. Hang in there!"

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  • Anonymous
  • October 29, 2008

"My face started tingling while I was at work, and I had a couple of little pustules starting to form. I put Denavir on my cold sore until I could make it to the doctor. Nine hours later, my cold sore was more full, and I went to the doctor and received a prescription for Valtrex. I took my first dose and went to sleep. Later that day, I took my second dose, and I noticed after my second dose the pustules started to dry up. I read a lot of material saying that you need to take Valtrex before the cold sore actually appears for it to be most effective, but I can truly say that it still works even if the cold sore is visible. I never knew that I could get rid of a cold sore so fast. Definitely try Valtrex."

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Frequently asked questions

  • Perso...
  • Taken for 2 to 5 years
  • November 16, 2016

"Hi! I've had fever blisters/cold sores/herpes of the mouth, etc since I was about 2 years old.So I know the horrible way it affects your self esteem. Not sure who kissed me as a baby , but may they forever burn! Ps...don't kiss your babies or let anyone else do it. I've learned a lot about the virus and could tell you many facts, such as its really just a virus. You get it , your immune system fights it , and it dies... but not with out leaving some of its DNA in your body. If you get cold sores, the DNA lingers in a big nerve ganglia in your neck. And no you can't have it removed ,I asked! Valtrex is a life saver. Tell your doctor right away you need a script for 30 w 5 rfls. Be firm. Don't be swayed. Always have 2 on you.Take ASAP."

10 / 10
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  • JamieMW
  • August 15, 2013

"I was one of those 'just live with your cold sore outbreaks' people until I was introduced to Valtrex. Stress triggers my cold sores and I tried everything over the counter. Abreva made my outbreaks worse and I became pretty hopeless at this point. Long story short, at college I had such a big outbreak I decided to see the Health Center & I was prescribed just 1 Valtrex tab about 2 days into the outbreak. The morning after I took the pill, I felt like days had gone by because it had healed so fast. If you get cold sores, you do not need to deal for 10 days. If you take a Valtrex at the first sign of symptoms, either your blister does not even form, or you're looking at a 2 day hassle as opposed to a day 10 disaster."

9 / 10
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Are you taking this medicine?

  • nurse...
  • October 11, 2013

"Every time I tell someone about this miracle medicine, I am hoping that they are listening to me. If you get cold sores, this is ESSENTIAL. I never leave home without it. I use it in combination with L-Lysine to reduce symptoms. I am getting one right now and did not feel the tingle, so I am hoping it will still work. Sometimes there is just no getting rid of a nasty, tough one. I am 23 years old, and when I have a cold sore, I absolutely obsess over it and I try to hide my face as much as possible. I hope they someday find a CURE for this virus, but in the meantime Valtrex is amazing!"

9 / 10
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  • VNPar...
  • Taken for 10 years or more
  • November 13, 2014

"I'd suffered quite a few breakouts of cold sore before discovering Valtrex so I know the pain and the lengthy healing process all too well. This literally stops cold sore in its track the moment you take it. Whatever condition the cold sore is in when you take the medicine, it would not get worse, only better so the sooner the better. If you take it AFTER the cold sore has become blister(s), it will stop the blister from multiplying BUT you would have to deal with the blisters bursting exposing the ulcer and then the healing of the ulcer. If you take it at the tingling/itchy stage of the cold sore BEFORE any blister is formed, you should be able to get away with the break out altogether. Goodluck!"

10 / 10
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65 Report
  • mawat...
  • August 6, 2009

"I went to the doctor with a bottom lip full of cold sores. I was swollen beyond anything. The doctor prescribed Valtrex, 1 gram, 3 times a day (every 8 hours). Well, 24 hours have passed, my swelling is down to almost normal, and I'm already in the scab stage. AMAZING! I will be keeping this on hand all the time. By the way, I have been suffering with cold sores for 20 years, and have used everything from Abreva to L-Lysine to other homeopathic remedies. These are the quickest results EVER. Definitely worth the money."

10 / 10
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  • runne...
  • March 10, 2020

"51 year old healthy male. In my 30's and 40's, I would get the worst cold sores. I was prescribed Valtrex about 10 years ago as needed for outbreaks. The outbreaks lessened in recent years, to maybe 1-2 a year, and shorter/less painful. However, in the last 6 months I've started having recurrent outbreaks, about once every 4-6 weeks, age, stress most likely. My doctor started prescribing me valtrex daily. Today, I got up from bed and had a very small cold sore on the corner of my mouth. Very frustrated and took an additional 1g tablet to help, and thankfully, it hasn't become worse. Will see over time if it works on frequency. I will say, valtrex has helped shorten the duration (now just a few days compared to weeks before), lessen the severity and pain (now small, barely there ones). In rare occasions, I've been able to stop an outbreak before it occurs, but that's so hard to do. I am very empathetic to my fellow cold sore strugglers, and to me the best cold sore is NO cold sore at all."

8 / 10
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  • mb979...
  • December 29, 2014

"I used to get cold sores frequently and have become so anxious about getting them that I keep a script for Valtrex in my wallet. After three years being cold sore free, I felt the burn and saw a patch of redness on my top lip. I immediately went to the pharmacy, filled the script and took my first gram of Valtrex within an hour of the first tingling/burning. I went to bed and woke up perfectly fine [and took the second dosage nonetheless]. I have no cold sore, no redness, nothing. I can't begin to tell you how much of a relief it was to wake up without that horrible throbbing swollen blister. I so highly recommend this. I can't imagine being without it now."

10 / 10
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  • Barbo...
  • Taken for 2 to 5 years
  • January 19, 2015

"I take Valtrex on a semi-regular basis to help my immune system. For example, I take one per day plus vitamin D and never get a cold sore. I did this for six months so I wouldn't have one at my daughters wedding! They always appear when I am stressed or in the sun. I still take them a few times a week and use an SPF sunscreen everyday which helps a lot. It can be expensive but I will pay anything if it works, forget the over counter stuff."

10 / 10
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  • Anonymous
  • July 30, 2008

"I take Valtrex for cold sores. Just taking 2, twice a day for one day, and the next day it is gone. It is really a lifesaver. Anyone who has ever had a cold sore should really talk to your doctor about keeping Valtrex on hand."

10 / 10
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  • First...
  • December 15, 2016

"First time using valtrex(generic) after mixed results with every single treatment out there. First sign was a very small red bump at 9pm, missed the tingle stage. Took 2 1g tablets and started using ice to not let it grow. Fell asleep around 11pm and applied some tea tree oil. Woke up to almost nothing. Small red mark that was not raised or tender. Unnoticeable. Forgotten by next day. Worth every penny"

10 / 10
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  • 52yea...
  • Taken for less than 1 month
  • February 1, 2015

"Awesome results. I rarely have cold sores. Roughly one every 2-3 years. Never have had ANY relief from various home remedies or OTC solutions. Cold sore forms in the same place on the upper lip just below my mustache which can be confused in the initial stages with an ingrown hair/pimple. Difference being that hair doesn't form on the lips! Ha. Outbreak swells quickly within 2 days to a nickel sized dimension with an actual open sore (yellow/white) 1/3 the size. I took 2 doses of 2mg 12 hours apart after swelling had started. A small yellow outline was already forming under the skin of the lip and I thought I was going to have another 2 week episode. Woke up this morning and the swelling was down and yellow gone! Really amazing!"

10 / 10
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  • Anonymous
  • Taken for 10 years or more
  • January 10, 2014

"I have had cold sores for my entire life. When I was a baby, I used to get them in and around my eyes, which was a terrifying experience for my parents, as I could have lost my sight. I was prescribed Valtrex after I had reached the beginning stages of puberty, and it is absolutely amazing! If you take it right when you feel the tingle, the cold sore will not even appear, and if you take it when the blisters have just formed, they will not worsen. And for those who have a fully formed monster cold sore, never fear! Valtrex will shorten the healing time drastically, for me about 3 days."

10 / 10
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  • Joyfu...
  • April 11, 2015

"This medication is amazing! My doctor prescribed it to because of the anxiety/depression I had from getting my first cold sore. I went to a baseball game (cold and windy), got drunk and the next day I felt a bump on my lip. I took 4 pills (500mg) immediately then another 4 pills 12 hours later. The sore never progressed and after a few hours the bump was gone! You MUST take them at the first sign of the sore for them to work!! There were no sides effects. These pills are expensive but worth keeping 8 of them on you at all times. They helped me. I hope this helps someone!"

10 / 10
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  • Dianne
  • May 23, 2024

"I sometimes get a cold sore after routine dental hygiene appointments in the corner of my mouth. I noticed the tingling sensation associated with getting a cold sore and started Valtrex within hours before blister appeared. Within 3 hours the tingling and burning sensation had subsided! I took another dose 12 hours later and by morning I had a little hardened skin, but no blister ever formed. Truly a drug that does what it says… I always keep this drug on hand."

10 / 10
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  • Doc2be
  • Taken for less than 1 month
  • March 5, 2016

"You guys, this medication deserves some kind of award. I have this random patch of HSV 1 on my eyebrow. It flares up a couple times a year. Previously, I have been prescribed acyclovir for breakouts. I wasn't too convinced it really did anything at all, but maybe it reduced my breakout time by half a day. This time, I happened to have a doctor's appointment that fell on day 3 of a breakout, so I mentioned that I wanted some acyclovir to help. My doctor said that was an older medication, and Valtrex was newer and better, so he gave me that. WITHIN 24 HOURS THE BLISTERS ARE NO LONGER BLISTERS AT ALL AND I AM HEALING. They did not burst, they just totally regressed. I took 2 2g pills twice a day for one day. This is a miracle drug. 10/10"

10 / 10
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42 Report
  • hsvguy
  • March 11, 2014

"Valtrex is truly the only cold sore medication that will act fast and diminish your pain and blisters within days You will start feeling relief in hours. No other cold sore medication can compete. The only downside is you have to get a prescription for it. Depending on your insurance it could be fair to pricey. If you are like me and suffer from HSV 1 & 2 ask your doctor for 30-60 tablets. Most doctors will only prescribe the recommended dosage for treatment. (5 tablets) with 1 refill. It's such a pain having to go back to doctors when you have a simple outbreak. This will ensure a good supply for whenever you might need it. Always works FASTEST when taken at first sign of sore."

10 / 10
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49 Report
  • Anonymous
  • February 24, 2014

"I've had HSV1 ever since I was 2. I had an outbreak then and again when I was 9 or 10. I'd forgotten that I even had the virus until a week ago. I got a new lip piercing and 3 days into the healing, my lip blistered. It had been 25 years since my last cold sore but I remembered what those blisters meant. I wasn't able to get to the doctor until two days later. By then, the blisters had broken open and were all crusted over. I took 2 of the Valtrex as soon as I got them and another 2, 12 hours later. Within a few hours the pain started going away. The terrible burning was gone. It's been 2 days since my last dose and my cold sore is in it's final healing stage. With the little scabs. My lip is flat again & the only pain is from the piercing."

10 / 10
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  • Hybrids
  • September 9, 2016

"I wouldn't believe it if I didn't see it for myself. So maybe you'll have to take my word on it. But this medicine is absolutely a lifesaver. This is my third cold sore. My first time was years ago I had no idea what it was or when I did it was to late and had to deal alone. The second time was a year ago I called my dr who prescribed a round of valtrex, because I caught it kinda early it still progressed but was nothing like the first time. So my third time is happening right now. But since my last outbreak I begged my dr for a daily script . Wednesday I woke with a small lump and I knew. I took 1000mg and watched it slightly raised and I could see the pustules under the bump.. I took another 1000 at night . It never progressed past that."

10 / 10
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39 Report
  • Anonymous
  • Taken for 6 months to 1 year
  • March 14, 2013

"I'm 27 years old and been a cold sore sufferer ever since I can remember. I've Tried everything under the sun to keep my outbreaks under control but nothing seemed to work. I went to my dermatologist and he prescribed this medicine. I usually get about 4 cold sores a year and since I have been prescribed this medicine I literally have not had one! I take 2 pills when I feel it coming on and it stops it dead in its tracks. This medication is a miracle to me, as we all know how embarrassing having a cold sore is. It has saved me from many Friday nights spent in bed hiding my face while all my friends are out and having fun. 10 out of 10!"

10 / 10
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  • Candice...
  • October 16, 2014

"This medicine is a miracle. Sore clears up within 3 days and faster when I take as soon as I see on-set of sore. I take 2-500mg on first dose and one as directed. Do not hesitate having these on hand in case a flare up occurs. Unbelievable and I pass this info on to others I know and they are so grateful."

10 / 10
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44 Report
  • Light...
  • Taken for less than 1 month
  • July 18, 2019

"I actually am not sure if what I had was herpes but the side effects I experienced from just taking one dose of this drug were scary. I could barely wake up in the morning my head was hurting so much, I felt sick all day, like I was going to throw up, and I took three naps and STILL felt exhausted. I ran to the bathroom a few times thinking I was about to throw up, leaving my 4 month old alone while I did so. And I could not eat anything all day because of the nausea."

2 / 10
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  • Anonymous
  • Taken for 1 to 2 years
  • October 31, 2016

"I had suffered through many cold sores, and spent tons of money on abreva. When my doctor prescribed me valtrex I was finally satisfied because within the first tingling feeling , and me taking valtrex most times the cold sore just disappears. I can take valtrex at the first symptom , and it's no longer an issue. Most times not even my boyfriend will see the bump , and I have to point it out. I love valtrex, and am extremely happy with my results."

9 / 10
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34 Report

Reviews may be edited to correct grammar/spelling or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published. This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge, and judgement of healthcare professionals.

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