Non lactational mastitis

So I stopped nursing 3 1/2 months ago and got a large red sore on my nipple 2 weeks ago. It started peeling and I figured t would go away but it didn’t. Went into the doctor today and I have mastitis. About 4 hours after leaving the doctor my mass popped open. Fluid keeps slowly draining and bleeding and hasn’t stopped for a few hours now. I’ve had the worst headache and nausea today. I just feel sick.

Anyone who has had this, how long did you feel awful before the antibiotics helped? Did you do anything to help drain the fluid or make it stop leaking?