I'm living n Costa Rica and just got over a bad case of the flu but left with a breathing problem (chest infection) and have asthma. Normally my Dr. in the states will give me an antibiotic and predisone. I have the antibiotic and just came from the pharmacy with the prednisone but I don't know what dosage to take. I bought the 20mg pills in a box of ten tablets. I always use an inhaler as well. Anyone have suggestions on dosage? I'm 200lb and normally a healthy 58 years old with no other conditions.