Try to maintain the optimal humidity. In case of living in the damp climate then consult the doctor about the using of a dehumidifier.
Must clean the damp areas in the kitchen, bath. And also the surrounding of the houses for keeping the mold spores from the developing. Should try to get rid of the moldy damp firewood or leaves in the garden.
In case of having allergic to the dander then try to avoid the pets with their feathers or fur. By giving the pets bathed or the groomed regularly might lessen the risk of the dander in the surroundings.
The most important thing is the cleaning of the home. So, try to clean your house or living place at least one time in a week. In case you supposed to be the stir up the dust. Then you can wear a mask or you can hire someone else for the cleaning of the house.
Covering of the mouth and nose in case of the cold outside is the best tip for those asthma patients whose asthma got worsened by the dry air or cold.