### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a small lump on the side of my neck. It has been there for about a month. I noticed it got slightly bigger. Today I was touching it and squeezing it. Puss started to come out and the lump got a little smaller. It is a little sore now and I dont know if thats because I was trying to squeeze it so hard, or because I have irritated it. It never hurt before. Any clue?

### output:

Hi, Dear,thanks for the query to Chat Doctor. Dear, your question has the following facets which would be replied to satisfy your query. After meticulously studying your facts and your concerns following possibilities need to be considered in coming to its diagnosis -In my opinion this non-painful lump with pus like discharge in actual seems to be Sebaceous Cyst, which reduced after squeezing due to discharge from it. The squeezing trauma, post-traumatic induration and edema, which is the cause of the soreness of the non-painful lump, as rightly thought by you. There is risk of increasing pain, as the lump has opened up and may close which would cause pent-up discharge with post-traumatic blood, getting infected. So you need to consult your doctor and get it treated by antibiotics and anti-inflammatory Chat Doctor. It's very difficult to think of other probabilities as the facts are very scanty and hence I would advise you to consult an ER Surgeon, who would work out the clinical check-up and would fix its diagnosis and its rightful treatmentDont worry and go ahead as suggested to resolve the lump issue of yours Hope this would give you confidence to plan treatment with your doctor on your next visit, which you should plan definitely. Feel free to ask any further query in this regard to Chat Doctor and to ME. Write excellent review if you feel satisfied with this reply, which would help my rating for the benefit of the other patients. Wishing early and fast recovery for your lump.