Minor Hyperthyroidism treatment swelling

I had very minor hyperthyroidism TSH 0.015 from last 2 years....and i was gaining weight not loosing as in hyperthyroidism...now i am taking some treatment with docter tablet neo mercazole 5mg.. treatment started with 2 tablets and morning,  2 tablets in evening...nd 1ciplar... Now after one and half month only my thyroid is TSH 2.67... t3 1.3 t4 5.09 docter recommend neo merczol 3 times a day 1-1-1 and 1/2 ciplar During this treatment I am facing some side effects... pain in my throat...My sound is changed....Swelling on my face specially on throat and all Body.. fatigue..I want to cure my hyperthyroidism. Docter said treatment will be for two years.. I am doing walk and execise daily now.. I want to cure my hyperthyroidism permanently.. but these symptoms can be life long??? My bify is feeling so bulky...