On week 6 of battling a staph infection.

I have somehow managed​ to get a staph infection I've used alcohol peroxide triple antibiotic Neosporin and even Lancing the ulcers & trying to trim the infection out followed by alcohol then peroxide an antibiotic cream and Band-Aids, isn't healing the staph infection or the ulcers.. Then tried​ scrubbing the ulcers with a wire brush & alcohol & peroxide straight to the scrub sites then triple antibiotic cream and Band-Aids. It has slowly spread over 6 weeks and I'm too embarrassed to go to the ER or my doctor about it it's starting to concern me though. 18 to 25 ulcers 1/2 the diameter of a pencil eraser, still infected and slowly spreading. I need to know what medicines to try and care plan to use to try and kill/heal the staph infection and heal the ulcers before they spread even more...