Staphylococcus aureus a normal flora i read in a book.if throat culture show this bacteria should we take antibiotic for it?cheese come from my tonsil

Normal flora: If you're not sick, or it's just a drip, don't take medication. Staph is indeed common in the throat. Leave it alone. The stuff in your tonsil is almost certainly a tonsillolith, which is unrelated to infection; it's keratin (there's propagated misinformation online) plugging crypts. You can learn to remove these yourself or they work their way out.