I had rhumatic fever at the age of 8 ,and took Penidure injection up to 18 years.i was ok after that ,then i had tonsilitis 3 months ago and i took antiobiotics ,and it was cured ,but again last week i had pharyngitis and gone for throat swab & sensitivity test ,resulted that non hemolytic streptococci and doctor prescribed cefadroxil , Is this will cause heart valve damage or any disease or can i take kaypen 250 mg ,Please suggest a good medication for my situation