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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)

Tachycardia Guide: Causes, Symptoms and Treatment Options

However, because some forms of tachycardia come and go, a one-time office EKG may be normal. If this is the case, you may need a test called ambulatory electrocardiography. For this test, you will wear a portable EKG machine called a Holter monitor for a period, usually for 24 hours. If symptoms occur...

Harvard Health Guide (Harvard)

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

hives fade quickly, but new crops may appear every 24 to 72 hours if the person continues to be exposed to the environment or substance that triggered the hives. If hives are an early sign of a whole-body reaction, other symptoms to look for include swelling of the tongue, lips or face; wheezing;...

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)

Diarrhea Guide: Causes, Symptoms and Treatment Options

usually most severe during the first 24 hours. Although some episodes of acute diarrhea last as long as 14 days, most go away within three to seven days. Prevention You can help to prevent diarrhea by practicing good hygiene. Most importantly, wash your hands frequently with soap and water, especially...

Harvard Health Guide (Harvard)

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