Hello, I am really sorry to hear about the trouble you are having. Allergies are chronic conditions which can not be cured. We can control them by avoiding, if avoiding not possible we can suppress them with medicines so that you dont get these symptoms. There are some forms of immunotherapy but I wont recommend them. You should meet a pulmonologist.
Next Steps
Since you are in Mumbai, you can choose to visit my clinic. My details are available on practo website.