Hello and welcome to HCM,
I have understood your problem regarding cough and mucous.
Since it is four months you may have cough for different reasons and also the mucous.
But I suspect your cough may be due to reflux also. You need to do these:
1. Take a course of anti
reflux medication like
pantoprazole for two weeks before food. your doctor will know about these.
2. Take an anti
allergy tablet like levocetrizine also in consultation with your doctor
3. Take only non oily, non spicy food
4. Keep your weight under control and do not immediately lie down after a meal
5. Do steam inhalation regularly
If your symptoms do not improve in a week or two of following the above religiously then you must get an Upper GI
endoscopy, complete sputum and blood analyses and chest
X ray and get back to me or any ENT doctor with the reports
take care and get well soon
regards
Dr Sriram Nathan