Thank you for your question.
I am Dr Saha, I shall try my best to help you.
I am sorry for your condition.
I would suggest to take an examination by doctor.
There can be a few possibilities.
There can an allergy, bite.
Bleeding under skin or purpura is a possibility.
Doctor would advise tests if he thinks after examination.
You can apply benadryl cream.
It will help in case of any allergic reaction.
I hope this information helps.
If there’s anything else I can do, please let me know.
If you are satisfied, please rate my answer as good or excellent.