A member asked:

I know it depends on different people but when you get poison ivy can you or could you ever build a tolerance to it or buy a anti venom so to speak?

A doctor has provided 1 answer

Forget it: Sensitivity to poison ivy is mediated by T-lymphocytes which form a chaotic system -- sensitivity may appear and occasionally disappear. Since it's antibody-independent, forget about desensitization or antisera. All the work so far has been fringe stuff.

Answered 6/5/2018

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