Abstract
To evaluate the effect of preventive measures, 47 patients, all allergic to house-dust mites, were allocated to study. According to the patients' subjective recordings of symptom score and use of medicine, compared with the control group that had not used any matress made of polyester fibers, the study group had improved. There were improvements when comparing the attack and cough, disturbance of sleeping and use of medicine.
It was concluded that the preventive measures in this program were very effective for the patients allergic to house-dust mites.
Mite counts were performed on samples of dust taken from the bedding of 47 patients and randomly selected control patients.
The numbers of mites were markedly reduced in the studied group but not in the control group. Although the patients' homes were cleaned in the same manner, greater concentrations of house-dust mites were found in summer. It was concluded that high humidity improved the survival of house-dust mites in the home and could lead to an increased incidence and severity of house-dust mite allergy. It was necessary to clean more frequently in the bed room in addition to reduce high absolute humidity of indoor air.
