Antihistamines: Contact dermatitis is an immune response. The oil from poison sumac caused your immune system to react by releasing inflammatory cells, which release histamine among other things. The rash is a result. Benadryl (diphenhydramine) is an anti-histamine. You may also need a steroid to settle your over reactive immune system down. Anything which calms the skin is good, like chilled aloe vera.
Answered 6/24/2014
6.4k views
Can't: It has to run its course, however topical Benadryl (diphenhydramine) and/or cortizone cream may reduce reddness and symptoms. Oral steroids may be required for larger or more severe outbreaks, possibly along with antihistamine & h2 blocker to reduce symptoms. You've got it for about two weeks. Sorry!
Answered 1/21/2019
5.4k views
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question