Dear friend, welcome to HCM.
you seem to be having folliculitis
of the nostril
being in the danger area of the face , you need appropriate treatment under medical supervision.
how old are you? do you have diabetes?
would suggest a visit to your doctor to confirm the diagnosis. till then can start tablet combiflam
or other household pain killers thrice a day, and cloxacillin
capsules 500 mg 3 times by mouth.
be guided byu your doctors' advice.
keep me posted on your progress.