4 doctors weighed in:

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?

4 doctors weighed in
Dr. Bennett Werner
Internal Medicine - Cardiology
3 doctors agree

In brief: 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.

In brief: 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.
Thank
Get help from a real doctor now
Dr. Christopher Crosby
Board Certified, Dermatology
15 years in practice
105K people helped
Continue
100,000 doctors available