upper respiratory tract infection
"Keflex is the greatest , I have been using it  for 50yrs, until recently some people have polluted doctors minds that antibiotic use can be bad I,ve used it for 50 years it has saved my life more than once,recently my doc of 50 yrs retired,and I had to get another doc,its one of those that go by the stupid books,most are garabge,now I cannot get this medicine no more,so I have been sick now for 3months thanks to these idiots that don't have a clue what they are talking about."