I saw a doctor today and am being treated for Bronchitis. I had a shot of Cortisone, and am taking antibiotics (a z pack ), Prednisone for 1 week, and a cough syrup with codeine. Now I feel great! My question is how contagious should I assume myself to be??? I have had no yellow or green phlegm , and I actually think my Bronchitis was caused by exposure to a lot of pollen from all the flowers and trees blooming in my yard! I do not want to see my son, his girlfriend, and her 4 year old boy this weekend if I am contagious!!! PS My symptoms were serious coughing and wheezing.