Thanks for your question on Health Care Magic.
I can understand your situation and problem.
Your
white spots on tongue are mostly due to steroid injection.
Steroids cause low immunity and candida (fungal) infection in mouth.
So better not to take systemic steroids.
Instead of this,
consult pulmonologist and get done clinical examination of respiratory system and PFT (Pulmonary Function Test).
PFT is must for the diagnosis of
bronchitis.
It will also tell you about severity of the disease.
And treatment of bronchitis is based on severity only.
You will mostly improve in inhaled bronchodilators and inhaled corticosteroid (ICS).
Avoid any form of systemic steroid (oral or intravenous).
Don't worry, you will be alright.
Hope I have solved your query.
Wish you good health. Thanks.