Thanks for posting your query.
You are suffering from acute exacerbation of asthma
with purulent bacterial infection.
You should immediately stop prednisolone
as it exacerbates bacterial/ viral infection.
You should go for culture & sensitivity of mucus and Throat swab for strep.
You should consult with physician/ ENT surgeon and should go for complete blood count
and x ray
You should also go for chest x ray.
You should take complete antibiotic course, decongestants, mucolytics, anti-inflammatory.
Dr. Mayank Bhargava