Thanks for your question on Healthcare Magic.
I can understand your concern.
Possibility of viral upper
respiratory tract infection (URTI) is more.
And it will mostly heal by itself in 5-7 days.
So if you can manage your
cough without medicines then no need to take drugs.
But if you want to take cough medicines, you can take. No harm in it. This won't interfere in your
endoscopy.
So if you don't have much cough then no need to take anything. Also do following things for better and quick relief in URTI.
Drink plenty of fluids orally and keep your self hydrated. Do warm water gargles 5-6 times a day. Avoid oily and spicy food. Take sound sleep of 6-8 hours.
Don't worry, you will be alright.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.