I've had asthma all my adult life. When I get a lung infection it gets much worse than a 'non-asthmatic'. I've recently had an infection & first took Amoxicillan (didn't work) so I was put on a course of prednisolone and Clarithromycin. It's loosened my lungs but I'm having some terrible wheezing & coughing attacks so I feel I can't get another breath and am having panic attacks? Should I go back to docs or does it take some time after completing the course for it to work?