Hi. Wast sting can produce severe allergic manifestations, and can be fatal sometimes. You need to take antihistaminics (hydroxyzine/ cetrizine
round the clock, may be every sixth hourly), ranitidine
(150mg 6th hourly) and steroids
either as injection decadron/ oral steroids for a short period to control this allergic reaction
immediately. So I suggest that you go to your clinic as soon as possible.