strep throat and sports!!!?

[MAJID]

now a days i m bodyuilding in gym and not seems to be huge guy but a man with normal physique. last year i hav sufferd from the strep throat, my ASO=324(BEFORE ANTIBIOTIC TREATMENT) and after the 10 days period prescribed by the doctor he advices me to do uor test again and i did so it was ASO=347.. ANYWAYS NOW IT HAVE BEEN AN YEAR AND YET I HAVE NO COMPLAIN OF bad throat. But someday go back i discussed this to my gym owner so he would prescribed me a body building supplement cautiously but he then told me of taking testosterone ,he have, and it will prove helpful in my disease i mean , he said; ( my body stops generating steroids and things related to them when i will take them, and so in a way i may able to decrease my ASO LEVEL along with ths i will pack up some muscles on my body.He advised me to take one/two cycles and after that he will prescribe me some supplements and they will worthful after that level(to get a model shape body).And uphill how long i will bear the weaken immune system,if i will take such medicine then for how long my body starts generating own..?