Dear Dr, this is regarding my throat infection problem ..I get chronic infection due to weather change, symptoms: throat shoring, enlarged tonsil, broken and lesser voice sound, needs extra effort to throat for speaking...Please Advise. ....as per doctor's advice I used ZIFI 200 and Allercert DC which relieved for one time but did not cure permanently as I got infection again within 2 months....Please advise if I need to do surgery or else....thank you