Can i still take xinc oxide on staph infection?

Yeah.. but: the pill form won't help the infection in any way unless you have a severe zinc deficiency and even then....not much. On the toher hand, zinc oxide is helpful on healing. BUT you have to have an infection treated with antibiotics (and often surgical drainage) before that becomes relevant.

Zinc oxide: Staph should be treated by specific antibiotics by mouth and sometimes also topically