Hello, I first got a medium sized pimple that on

Patient: Hello, I first got a medium sized pimple that on my chin about a month ago, it ended up being one of those that you are never able to pop and stayed under the skin, I ended up picking it a couple times thinking I was going to be able to pop it, but I never was. For the last month it looked like it started to heal, it looks less like a pimple and just more like a red spot and I can still feel puss inside it, even after I let it scab over from when I had picked it. Someday’s it’s a lot more noticeable than others, but it’s been like that for like 3 weeks and doesn’t show any sign of going away no matter what type of acne product I put on there. PLEASE HELP

Symptoms: Red bump/pimple

Doctor: