A member asked:

I had a big boil on my back long ago. healed after some days. till today i find foul smelling thing draining out from the site on pinching. no pain.

A doctor has provided 1 answer

Need to examine: It is not feasible to know for sure, without examining you, however, if the boil was between your buttocks, even at upper end, it is likely to be a pilonidal cyst/sinus. If you are overweight, losing weigh would help. It may require surgery. You may consult this site for more information on this topic. http://www.mayoclinic.org/diseases-conditions/pilonidal-cyst/basics/definition/con-20025007

Answered 9/5/2017

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