welcome to healthcare magi forum
thank you for your query
i understand your concern about skin lesion.
it may be due to bacterial ,viral or fungal infection
you need to consult doctor
to have proper treatment plan .
do not pick or popped the lesion .
there may be chance of spreading.
it may also due to pilo nidal sinus
you can take anti histaminic medicine and apply antibiotic cream safely.
i hope i answered your query