Thank you for your question.
I am Dr Saha, I shall try my best to help you.
Viral infection or flu usually requires supportive treatment.
It gets over in 3-5 days.
You can continue tylenol, fluid.
Gatorade, ORS can be taken.
You need to remain at rest.
Peptobismol can help in diarrhea.
As you are having deep chest cough with no improvement of symptoms, I would suggest to take an examination sooner.
A bacterial infection needs to be ruled out too.
I hope this information helps.
If there’s anything else I can do, please let me know.
If you are satisfied, please rate my answer as good or excellent.