A member asked:

Small bug bite size spot on leg. used calamine but got worse, now fist size. no major sores just red and itchy. thoughts?

8 doctors weighed in across 3 answers

Reaction, infection?: My two thoughts are a significant local reaction or a local infection. Since it is itchy, I'd go first with the local allergic reaction. Topical calamine often won't cut the mustard for this, so I would try oral Benadryl (diphenhydramine) and cool compresses to area. If after a few doses of that things are not improving, then I would be more suspicious of infection and you need to see doc or go to urgent care.

Answered 2/3/2018

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Dr. Gloria Lopez answered

Specializes in Pediatrics

Bite reaction: Seems like a localized allergic reaction to the bite. Watch for sings of infection (pain, pus, etc) Try OTC Zyrtec or Claritin (loratadine) once a day for a few days to stop the allergic reaction, apply cold compresses a few times a day. It should get better soon.

Answered 7/14/2014

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Infection: or reaction to the bite. See your doctor to have it checked out.

Answered 7/4/2014

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