Hi, There are two reasons of Asthma: Infection or Allergy. Most probably your reason- allergy. Particularly in spring and summer seasons are blooming various plants and their pollen could be a reason for your condition. In such case very difficulty to separate Asthma from Allergic bronchitis, but the treatment are the same anyway. I can recommend to make a skin allergic test, it will help your doctor to prescribe you the best treatment. Take care and wishing you a good health. Always yours.