Hi thanks for asking question.
You have asthma
type 1 hypersensitivity.
According to history it seems to be worsening .
So first you have to take regular maintainance foracort 200 twice a day regulatlt .
Whenever sever attack with difficult breathing for immediate relief you can take nebulization by
levosalbutamol and
budesonide.
Try to avoid exposure to allergen like dust, pollen , certain food etc.
Allergy test can done to search for allergen.
Bad mouth test is becoz of powder in metered dose.maintain
oral hygiene with gargles after using pump.
Garlic, onion , ginger are some useful herbal remedy for asthma.
If you have repeated blocked nose by viral infection steam inhalation taken
Do regular moderated exercise and avoid smoke .
I hope my suggestion will helpful to you.
Dr.Parth goswami