hi You seem to be developing recurrent swelling at a place since quite some time...i think it can be a sebaceous cyst which is getting infected again and again and thereby leading to swelling and discomfort A sebaceous cyst is a closed sac under the skin filled with a cheese-like or oily material.Sebaceous cysts most often arise from swollen hair follicles. Skin trauma can also induce a cyst to form.These cysts are usually found on the face, neck, and trunk. They are usually slow- growing, painless, freely movable lumps beneath the skin. Occasionally, however, a cyst will become inflamed and tender. sometimes there is a black dot that you see over the lesion which is the punctum present over the sebaceous cyst from which occasional discharge can occur Usually Sebaceous cyst can be left on its own but if it continues to cause problem in the form of recurrent swelling, pain and discharge, then you need to consult a dermatologist for its removal Hope it helps Dr Geetika Paul