My husband , over the last 16 months, has had 16 courses of anti biotics. The longest he has gone after finishing the course is 4 weeks. Is this a normal progression of ipf or is it because he also has emphysema. I can always tell when he is going to need them even though he insists he's fine, then he drops suddenly and has to admit that hes poorly. I don't want to be always nagging him but I have be vigilant. the dr and hospital are aware of the monthly cycle but they haven't said whether its normal or not.