Granular pharyngitis throat problem.

I have consulted Ent Doctor for my granular pharyngitis throat problem and he prescribed medicines ie. Antibiotics, anti allergic, bicosules, Ranitidine tablets for 1 month, Symptoms was suppressed 30%-40% but it was not cured and then I shifted to homeopathy since 2 month and just taking their medicine but not sure it would work or not. The first doctor said that it's allergic and to take steam and saline water gargles. White color Mucus comes in mouth sometimes. And I am so depressed i am in my peak study years and it's just breakinge from inside. Plzz suggest me something is it curable and how. I live in Noida and this problem is since 2 yrs but sometimes it inc specially in changing season or viral cold, Better in warm seasons