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While taking antihistamines,nurse should teach these informations including :1) Operating machinery and driving may be dangerous.2) Do not use alcohol with antihistamines.3) Increase fluid intake to 2,000 mL/day.Antihistamines are used to alleviate or prevent the signs and symptoms of hay fever and other sorts of allergic reaction. They paintings by using stopping the results of a substance known as histamine, that's produced by means of the body. Histamine can motive itching, sneezing, runny nose, and watery eyes.Benadryl, the primary-technology antihistamine diphenhydramine is the principle lively factor in Benadryl. Benadryl allows relieve runny nostril, sneezing, itchy or watery eyes, and nose or throat itching.Learn more about Antihistamines here:-#SPJ4