welcome to healthcare magi forum
thank you for your query
i understand your concern about your skin lesion.
it look like boil or other infection.
you need to take antibiotic medicine .mupirocin
cream over affected area 2-3 times a day will work well.
you can take ibuprofen
for pain and swelling 3 times a day
better to consult dermatologist
for proper treatment plan.
it may take 7-10 days to heal.
i hope i answered your query