### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have sensitivity to the house dust (mate) for more than 40 years, in 1978 I got the vaccine brought to me from London I felt  good after that but 4 years later the same symptoms come back to me and during all these period I use the dexone or dexamethasone to  relaxing the pruritus of the allegri in my eyes my question is can I continue to use the dexone or use the Allercet as anti allergic medicine thank you DoctorAli YYYY@YYYY

### output:

Hello Ali. Thank you for asking at Chat Doctor. I went through your history. You can continue to use Allergen as anti-allergic medicine. However, personally I would not recommend debone or dexamethasone as they are oral corticosteroids and their long term use have many side effects. It is important to know that allergy medicines like anti-histamines and corticosteroids do not cure allergy. So you need to take them continuously as long as you are having symptoms. Personally I would suggest you to consult an Allergist-Immunologist for allergen specific immunotherapy (vaccine) again. Nowadays, it is available in most countries and its quality and practice has also improved compared to days in the 1980s. Sublingual form of immunotherapy is also available which does not require injections. I would suggest you to take immunotherapy (vaccines) at least for 3-5 years which will minimize your requirements of allergy medicines and also corticosteroids. Hope this will be helpful to you. Wish you the best of the health. Should you have any query, please feel free to ask at Chat Doctor. Thank you & Regards.