I have a female housemate with serious asthma. She has had attacks everyday since last Sunday after she vacuumed the house. She has been coughing like hell in midnight. Though she may have a good coping strategy given that she has had it since childhood, her asthma appears not to be within control and I am concerned about her. I don't ask about it too much to avoid misunderstandings, but I am not sure what I may do to help her feel better. I mop the floor twice a week so far and am not sure if it could help over time.