My dad got poison sumac yesterday and went to the doctor today. should i be worried i may get it from him if he took a shower yesterday?

Very rare: This is very rare but the same precautions used with poison ivy apply. The oil that causes the skin reaction can be transmitted from one part of the body to another or to another person. It is not contagious. If he took a good soapy shower most if not all of the oil should be gone.

Probably not: It is unlikely unless you touched him or his clothes before his shower or the poison sumac itself. The oil from poison sumac, oak and ivy can cause contact dermatitis in sensitive individuals. It can take several days to appear after contact. Fortunately if you suspect exposure washing right after exposure can remove the oil and reduce the likelihood of getting the rash.