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1.The history and location suggest the possible cause will be hair
follicle infection with collection of pus within.
2.Next cause could be infection and collection in the subcutaneous plane.
3.The treatment in this case will be - in small lumps an
incision and drainage will help followed by antibiotic treatment.
4.In small uncomplicated cases a course of antibiotic will be enough with symptomatic medication.
5.As a remedy - avoid squeeze, press, scratch the lumps ( you will only complicate in this way), avoid shaving until heals - use trimmer mean while, maintain local hygiene, clean with antiseptic liquids, avoid clothing that will cause irritation in that area - use soft clotting. Good luck.
Hope i have answered your query,
any thing to ask do not hesitate to ask.
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