Potassium is essential for the proper functioning of the heart, kidneys, muscles, nerves, and digestive system. Usually the food you eat supplies all of the potassium you need. However, certain diseases (e.g., kidney dis...

Diphenhydramine is used to relieve red, irritated, itchy, watery eyes; sneezing; and runny nose caused by hay fever, allergies, or the common cold. Diphenhydramine is also used to relieve cough caused by minor throat or ...

Hydrocortisone is available with or without a prescription. Low-strength preparations (0.5% or 1%) are used without a prescription for the temporary relief of (1) minor skin irritations, itching, and rashes caused by ecz...