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Allergy Guide: Causes, Symptoms and Treatment Options

Allergy Guide: Causes, Symptoms and Treatment Options Allergy Overview Health Guide Disease Reference Care Notes Medication List More What Is It? An allergy is an immune system reaction to something that is normally harmless. The reaction to the allergen (allergy-triggering substance) results in...

Harvard Health Guide (Harvard)

Insomnia Guide: Causes, Symptoms and Treatment Options

and on the success of lifestyle changes and treatment. Prevention It helps to have habits that promote healthy sleep: Follow a regular sleep schedule. Have a routine bedtime and wake up at roughly the same hour each morning. Sleep in loose, comfortable clothes in a comfortable bed. Eliminate any...

Harvard Health Guide (Harvard)

Asthma Guide: Causes, Symptoms and Treatment Options

more sensitive to this medication: their airway muscles are more likely to tighten up. Your doctor may want to do a blood test or allergy skin testing. These tests are used to determine specific substances ("allergens") that can trigger an allergy. During a severe asthma flare-up, an arterial blood gas...

Harvard Health Guide (Harvard)

Hives (Urticaria) Guide: Causes, Symptoms and Treatment Options

skin testing for allergies. If your doctor suspects that you are undergoing anaphylaxis, he or she will begin treatment immediately and closely monitor your blood pressure and breathing. Expected Duration Individual hives usually fade within eight to 12 hours, but recurrent hives can continue to...

Harvard Health Guide (Harvard)

Generalized Anxiety Disorder Guide: Causes, Symptoms and Treatment Options

prescribe a fast-acting benzodiazepine for relief. Benzodiazepines — These drugs affect a chemical messenger that works in the brain's fear response system. Examples of benzodiazepines are clonazepam ( Klonopin ), lorazepam ( Ativan ), diazepam ( Valium ) and alprazolam ( Xanax ). They are reasonably safe...

Harvard Health Guide (Harvard)

Rash Guide: Causes, Symptoms and Treatment Options

of measles disappears within 6 to 7 days. Rashes caused by an antibiotic allergy may last 3 to 14 days, whereas diaper rash almost always clears up within 1 week (if diapers are changed frequently). Rashes resulting from lupus or dermatomyositis may last for an extended period of time. Prevention...

Harvard Health Guide (Harvard)

Edema Guide: Causes, Symptoms and Treatment Options

To avoid leg swelling on long trips, stand up and walk around often. Ideally, you should get up once an hour. If that's not possible, then exercise your feet and lower legs while sitting. This will help the veins move blood back toward the heart. Treatment Treatment of edema focuses on correcting the...

Harvard Health Guide (Harvard)

High Blood Pressure (Hypertension) Guide: Causes, Symptoms and Treatment Options

that blood pressure be measured carefully. To obtain an accurate blood pressure measurement: Avoid the following for at least one hour before you have your blood pressure taken: Strenuous exercise Smoking Eating Drinking caffeinated beverages Be seated for at least five minutes before the reading is...

Harvard Health Guide (Harvard)

Back Pain Guide: Causes, Symptoms and Treatment Options

additional tests. However, if he or she suspects a more serious problem involving your vertebrae or spinal nerves, especially if your back pain has lasted longer than 12 weeks, you may need one or more of the following tests: X-rays of your back Blood test Urine tests Spinal magnetic resonance imaging (MRI)...

Harvard Health Guide (Harvard)

Migraine Guide: Causes, Symptoms and Treatment Options

Most migraines last from 4 to 12 hours, although they can be shorter or much longer. One unique feature of migraines is an unusual sensation that a migraine is about to occur. This sensation is called a prodrome. Prodrome symptoms can include fatigue, hunger and nervousness. Migraines also have typical...

Harvard Health Guide (Harvard)

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