Your problem is really serious and I am sorry that you suffer heavily.
continuous soar throught is due to cold and cough. And cough means you have poor resistance to cold atmosphere.
You can not tolerate cold bath, curds, sweets, sour dishes.
you can not tolerate AC cooler also.
symptom is cough but cause is stomach. So you need to look at basic health of your Stomach. how is your digestion, how is your bowel movements.
how easy you evacuate.
Take care of your digestion.
cough is result of undigested food sticking to walls of intestine and getting putrefied resulting into too much cough.
No medical practioner will agree on face of it, but fact is this.
So you Do some things and Do not do something
one is take warm water as much as you can on rising from bed.
for easy bowel cleaning.
go for jogging. walking
limit your tea coffee to minimum
take light food, do light exercise.
take lot of leafy vegetables, fruits
take 250gm papaya or banana every day before retiring to bed
take sprouted beans
avoid late night movies.
avoid spicy, sweets, cold drinks ice creams pastry.
avoid eggs, fish meat.
do not go for junk foods like Pizza and chickens. that are heavy on stomach
Normalize your hunger.
eat only when you feel hunger.
once a week remain on fruits only.
take hot water bath till you feel tolerating cold bath.
avoid breezy and windy atmosphere, use warm woolen vests
all this will give you cumulative effect of reducing cough and after 3 months your cough will no more be there
if you get fever and tonsillitis due to cough , do not go for operation.
as it is natural indicator that something is wrong with Stomach.
and lastly learn some meditation and prayer, so daily fix time to do so .
this will help you know yourself better. and no Medicine will be lasting cure.
incase of further clarification, contact me. my mail on my profile