Welcome to healthcare magic forum
Thank you for your query.
I understand your concern regarding your skin problem
I am dr Gaurav patel ,dermatologist and will answer your query.
It is very difficult to come to diagnosis from your detail
It may be due to infection and eczema
You need to consult dermatologist
for proper examination.
Do not rub or scratch the lesion.
I hope I answered your question.
Let me know if you have any further query.