u have allergic reaction-urticaria
it is very unpredictable condition
pt has it from 2 month to 20 yrs.
what u need to do is to keep it in control .
only u need to take antihistaminic like cetrizine
it is safe tab and have no side effects.
ur body will surely recover from it.
dont take much stress
and drink more water.
u need not to change doctor frequently.