I Went To My Doctor On Friday And She Prescribed

I went to my doctor on Friday and she prescribed Levaquin and five days of prednisone for a very bad cold and 100°F fever I have asthma and having trouble getting air in at times even with a prescribed inhaler the fever I believe has broken but now I feel bad cough and phlegm has moved lower into my chest and possibly my lungs while sitting in a hot tub help or hinder ?