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A 25-year-old male asked:

Took a trip to the beach and got severe heat rash leading to itching. does psych medicine cause skin to not sweat and create heat rash? treatments?

1 doctor answer2 doctors weighed in
Dr. John Chiu
Allergy and Immunology 59 years experience
Drug reaction.: There is no indication that the drugs you are on have made you more sensitive to the sun exposure. Be sure you are not on st johns worts which may make one more sensitive to the sunlight. It is remotely possible that a very high dose of Benadryl (diphenhydramine) may reduce your sweating but it will have to be more than 10 times the average dose . I suspect your rash is from something else.
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Last updated Mar 8, 2016

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