I have a red lump on my chest about 1cm by 1cm big.  I tried to pop it today and it just bled but is still huge.  I also have a lesion near it that has been pussing for about a week I have had that befote and had surgrry to try to fix it but it has returned I havr however never had the larger lump .
Hello! Thank you for the query. From your description it sounds like you have a sebaceous cyst which has gotten infected. Due to infection, puss appears and starts giving pain. If it lasts long enough, the lump starts to leak. I suggest you to consult a surgeon with this lump. It needs to be incised and removed. To make sure it won't recur, it needs to be removed with the capsule. Hope this will help. Regards.