Poison ivy: The rhus antigen found on the surface of the poison ivy leaf in susceptible individuals causes a contact dermatitis. The rash only occurs where there is sufficient skin contact. The rash does not spread to un-contacted skin, but may occur more quickly in thinner skin or areas of larger amounts of contact. Contact dermatitis rash lasts 10-14 days. Your boyfriend could indeed have poison ivy.
Answered 3/1/2016
5.3k views
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question