Hello sir, Good morning, I read your history... Yes there is connection among ear throat n oral cavity...so any problem in any of these site n we can feel symptoms other site also as these three site sharing common nerve supply at one stand... For e.g pain in molar teeth pain we feel in ear as auriculotemporal nerve... This is called rediating pain...problem is here but pain feels away from site... Now coming on symptoms runny nose sneezing fever So we can put d/d 1.) common cold,sinusitis, sinus infection 2.) ear infection euschechian tube blockage For that examination of ear oral cavity n nose is necessary N I am sure your doctor examine you properly n investigate properly n give drugs according to that...so keep faith... Second thing that you may also misunderstand about diagnosis... N any infection is treated by antibiotics n most of infection in e.n.t part are treated by some group of antibiotics like cephalosporin group floxacin grouo...so you get relief if your diagnosis is wrong but this possibility is nil... So I just suggest keep faith in your doctor...