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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How To Treat A Itching Welt In The Back?

My son received, what appeared to be, a bug bit (small red bump) on his back (close to the arm pit) yesterday. It was itching him. So I applied cortisone to ease the itch. Tonight, I noticed it has grown to form a welt, and seems to be spreading underneath the armpit. The welt has the shape/size of a Lima bean, but the redness is spread out to be larger of an area (larger than a half dollar coin. What could this be?
posted on Sun, 15 Jun 2014
Twitter Sat, 10 Jan 2015 Answered on
Twitter Mon, 12 Jan 2015 Last reviewed on
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General & Family Physician 's  Response
Hi,
It seems that there might be having local allergic reaction due to some insect bite.
Give him oral antihistamine like Cetrizine or Benadryl for 1-2 days.
Continue applying cortisone cream.
Ok and take care.