I dont know if I have a boil or cyst it is next to my bikini line about 3 inches sore swollen red has a white head the lump is very hard been 9 days?

Infection. You likely had an infection develop in a hair follicle that has now encased itself in a protective coating or rhine.These are usually staph, and commonly MRSA.Early on they can respond to local application of heat, which can bring the thing to the surface and let it drain. If it has been there that long it is likely in need of surgical drainage.This can be done under a local.Call and get in soon.