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 look like insect bite most probably.
It will take a wk to healing the lesion.
You can apply antibiotic cream over the lesion.
For pain you can take analgesic
It is better to consult dermatologist
for proper treatment plan.
I hope I answered your question.
Let me know if you have any further query.