Rash has developed three weeks after a tick bite that nobody seems to know what it is.

	Asked by Unregistered (Male; Tubes in ear at 10 months. Adenoids and Tonsils out at 2 yrs of age. Other than surgeries only hospitalized once for Stomach virus when he was 9 months old. ; Relevant drugs:Every day: Singular and a Vitamin, For the rash, Keflex, predisone and a rx fro Itch medication. ) on Tue 22, Jul 2008 12:39pm
	My three year old son eas bitten by a tick in the groin area three weeks ago. He has nod no symptoms from the bite until three weeks later. He developed a rash of sorts under the bite. They are red with white little blisters and have spread all over his left thigh. We have been to the doctors twice and it does not look like RMSF or Lymes diease. He is on Kefleex, a steroid and a medication for the itch. He has been on the medication for 4 days and it is still spreading?
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	Answer by Dr Smitha M, MD (doctor) on Tue 22, Jul 2008 09:30pm: Hi, Is the rash clearing up at the center as it spreads outward? Any systemic symptoms, such as fever, drowsiness, altered urine color, etc.? The rash appears to be a delayed reaction to the tick bite and may be complicated by overadded bacterial infection. This may be treated by the antibiotics your son is on (Keflex). A swab can be taken of the fluid from one of the vesicles and can be tested for the presence of bacteria and to check whether the bacteria identified are sensitive to cephalexin (the antibiotic your son is on). If the rash appears to be spreading despite the medication he is on, do consult your treating doctor in this regard. He will be in a position to evaluate the rash and to decide a future course of action. Regards
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