Thanks for providing more information.
As you describe possible causes may include a sebaceous cyst,Folliculitis.
And you should take OTC Motrin 200 mg every 6 hourly.
Also do warm stiz bath.
You can clean the area with antiseptic betadine solution and apply OTC 1% hydrocortisone cream mixed with Bacitracin ointment.
If you have itching then take OTC Claritin.
Also wear loose cotton undergarments to prevent any friction.
Hydrate yourself with plenty of fluids.
If your symptoms'll persist then consult your regular doctor for further evaluation and management.
I hope this helps.
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