Diphenhydramine belongs to a group of medications known as antihistamines. Antihistamines are used to treat symptoms caused by allergies, including itchy and watery eyes, sneezing, runny nose, and skin rash and irritations.
The cream form of this medication is used for the relief of swelling and itching caused by insect bites, poison ivy, poison oak, mild cases of sunburn, and other minor skin irritations.
This medication works by blocking the effects of histamine, a substance released by the body involved in allergies. It usually starts to work within one hour.
This medication may be available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of this medication may not be used for all of the conditions discussed here.
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