A member asked:

Itchy red welt,then blister.most on limbs(67).now even on lips.brush teeth,spit blood.bld n nose.bp? autoimmune?could the spider bite b4 trigger this?

A doctor has provided 1 answer

May be urgent: If this is just developing at this very minute, you may be in the early stages of a severe allergic reaction ("Steven-Johnson Syndrome") which is a medical emergency. If this is acute, TO IMMEDIATELY TO AN EMERGENCY ROOM. If this is not acute, it still will require careful evaluation.

Answered 5/25/2015

2.8k views

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