what is the best cure for staphylococcus aureus

The most popular treatment is penicillin but in most countries S. aureus has developed a resistance of it due to self produced enzyme named penicillinase. There are penicillinase-resistant penicillins like oxacillin or flucloxacillin in the market. these can be used in combination of aminoglycosides like gentamicin for more serious infections.