How To Treat Allergic Reaction Rash On Body. Treating an Allergic Reaction Rash. Soak a clean washcloth in cool water then apply to the rash area for up to 10 minutes. Avoid scratching or rubbing the rash as this can aggravate your symptoms and delay healing. Apply an over-the-counter 1 percent hydrocortisone cream to help manage the itchiness.
Essential Oils for Rashes. Quercetin has been shown to reduce inflammation and allergic reactions. Treating an Allergic Reaction Rash. Examples of rashes caused by infection include scarlet fever measles mononucleosis and shingles. Rinsing the affected area with warm or cool water can also help. The best way to treat an allergic reaction depends on the cause though most minor cases can be treated with OTC antihistamine and anti-itch products.
Apply an over-the-counter 1 percent hydrocortisone cream to help manage the itchiness.
Essential Oils for Rashes. Take an oatmeal bath. Take an oral antihistamine to help treat the itchiness. Calamine lotion can also help relieve rashes from chickenpox poison ivy or poison oak. Taking cool or tepid showers or baths hot water can aggravate and dry out the skin. Using a cold compress to soothe the rash.