Throat and nose soreness and congestion.

I have previous allergy in changing season or closed nose or sneezing problem had but Before 2 month ago throat pain or balgum makes in chest then I used a kadha name Kofal and after that Throat and nose soreness and congestion makes and its to complicated situation makes Even unable to breath at night time and problem persist to inhale my larva in mouth because soreness is more due to freeze cought in throat and somehow in chest too due to use kadha name Kofal take lots of medicine and do all test of allergy,sugar,thyroid and CT scan also but no problem in all the test is shown so I felt it's heavily balgum pertain instead in my chest and it's too sticky which not flow out of throat and makes my soreness and conjestion in nose ,throat and tongue also.kindly check the problem and giving suitable resolution of that problem which still pertain of soreness and breathing problem in throat and nose still now sometimes.