Hi,thanks for the query to HCM.
Dear,I understood your health concerns.
Based on the facts of your query, your red,sore lump seems to be a early stage indurated perifolliculitis of Hair follicle(Boil),or it could be
Pilonidal Sinus or it could be Sebaceous
Cyst with mild re-infection.
Treat-
Rule out
diabetes by Fasting/and Post-meal Blood Sugar studies
Contact Surgeon and treat it with antibiotics / antipyretics/ and anti-inflammatory,with a long term followup.
Surgical planned Excision of the Sebaceous Cyst or of the Chronic Boil or of the Pilonidal Sinus would be needed.
US / CT study would fix the extent of the cause and its depth.Treatment could be planned according to the causes as suggested above.
Hope this reply would help you to plan further treatment in your case.
Good Day!!
Dr.Savaskar,
Senior Surgical Specialist
M.S.Genl-CVTS