Welcome to healthcare magic forum
Thank you for your query
i understand your concern regarding skin problem .
it look like sign of inflammation which is due to infection or insect bite.
you need to apply antibiotic cream over it.
please do not press or popped the lesion as there is always chance of infection,
in severe case you need to take oral medicine also.
it is better to consult dermatologist
if not improved
wear loose and cotton cloths.
I hope I answered your query