Kindly discuss for your concern

sputum examination is advisable

Zerotuss xp syp 10 ml tds x 5 dys Tb ceftas 400 od x 10 dys

I understood your concern  and noted the problem as well .I need to ask few more details to make a diagnosis and start treatment and advice which suits you. Pl consult me on Practo , so that I can help you better.book a time slot as per your convenience for consultation.

Defitely have some infection...

Would like to discuss in details and provide apt solution. Kindly consult.

Check yellow mucus at lab   may be normal  take warm two  glass of water daily morning  make this habit  routine in your life

Gilbert syndrome is something to be ignored . It’s harmless . Vitamin b12 deficiency can be easily cured with medicines. Yellow mucus suggests bacterial infection

Kindly consult

Sometime it is sometime it’s infection

Yes, it suggests there is Infection Do salt water gargling Maintain hydration

Yellow mucus might indicate underlying infection in your respiratory tract. Going by your history of Gilbert syndrome and b12 deficiency you have to give me a detailed history then only medicine can be prescribed. Inflammation or infection then only can be checked. You can consult online regarding further treatment. Meanwhile continue taking shelcal and a to z every day. And do cbc blood test.