According to WebMD, Caladryl lotion is a topical medication commonly used to treat itching skin caused by insect bites, as well as rashes caused by poison ivy, oak or sumac. It also helps relieve pain caused by minor burns and minor skin irritations. Caladryl is a combination of calamine lotion and diphenhydramine. WebMD explains that calamine helps to relieve oozing and weeping caused by rashes, while diphenhydramine is an antihistamine that relieves itching.
Caladryl lotion is intended only for the skin. It is not suitable for use over large portions of the skin and should not be used to treat chicken pox or measles. If Caladryl is used with other products containing diphenhydramine, side effects such as mild stinging or flaking skin can increase. Serious side effects of Caladryl lotion include rash, dizziness and breathing difficulty. If serious side effects occur, it is important to seek medical attention.
According to Drugs.com, Caladryl lotion can cause interactions with certain prescription and non-prescription medications as well as herbal dietary supplements. However, the risk of Caladryl interacting with oral medications is low, due to the fact that only minimal amounts of Caladryl are absorbed into the bloodstream. Drugs.com also recommends that women who are currently pregnant, breastfeeding or plan on becoming pregnant consult with a physician before using Caladryl lotion.