<s>[INST] Hi I have a large bump on the inside of my right butt cheek its red and it hurts to sit down, stand for a long time,walk and move around while laying in my bed besides applying heat and soaking in a warm bath what else can I do to make it go away cause its really painful [/INST] Hi, thanks for sharing your health concerns with Chat Doctor! If I were your treating Doctor for this case of a buttock lump, I would come up with only one and one possibility that is an infected sebaceous cyst! Nothing to worry about this and try not to get infected again there! Please apply ice pack/cold compress and antibiotic/provide iodine lotion in the area for some relief and revert to us... I suggest you to go for an FNAC test of the lump for confirmation and to relieve your concerns if still worried! Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health. </s>