I have developed a heat boil on my left thigh on the inner side. It has bee there for more than 3 months. Earlier I was on no carb diet, I ate a lot of poultry & meat. I got the boil but it did not grow & puncture as it should have. Now it feel mushy & has some kind of an flesh mass build-up with a small hole in the middle. Maybe the cyst has hardened, the send image shows the average size of the hardened flesh or cyst underneath the skin. It is very irritating & has feels like blunt needle poked on wound when I press it. Can it be cured by drainage or does it need to be removed surgically? Looking for good & effective diagnosis