My husband has a hard lump with a small hole on his back.  Hes had this for decades now and generally I squeeze it a couple times a year (smelly creamy goop comes out)  but it seems to keep it in check.  I havent squeezed it in a while and now its HUGE, so red that its purple, and it seems to have shifted off-center.  Im really worried...how urgent is this?  He is getting it removed in 3 weeks, but were really nervous until then.
Hi. Thanks for your query and an elucidated history. This is a sebaceous cyst, which has gone into infection. Take a proper antibiotic and anti-inflammatory for 1 to 3 weeks and go for a surgery.