i suffer from alot of throat infections, can you please give me a cure

I suffer from throat infections, evry other week but the doctor prescribes me wid antibiotics.
The problem never really goes away. Im ok until im using antibiotics but when they have finished, afew days later the symptoms come back again.
The symptoms are; sore and redness in the back of the throat, blisters and i am unable to swallow my own sliver.
I also have sickness.
The doctor has said dat its not my tonsils. Ive even been refferred to a ear nose and throat specialist but have been discharged.