Thanks for all these additional details.
I am sorry to hear about your problems.
From the description, it sounds to be- Tick bite on insect bite.
You should clean affected part with lot of warm water and soap.
The serious allergic symptoms to be checked are-
Trouble breathing, shortness of breath, Throat tightness or difficulty swallowing Feeling weak or Turning blue. From the description it sounds that you don't have serious reaction, and this can be managed at home.
You need to apply 1% Cortisone cream mixed with Bacitracin ointment twice a day on the bump for 5-7 days. Also take Tab Claritin 10 mg once a day for the itching. These are OTC drugs.
Usually in 4-5 days, such symptoms will get resolve completely.
As such, to be honest, this is not a serious issue and can be managed with measures, as advised.
Hope this helped
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