Are Multiple Allergies Related To MCTD?

Hi. I m 18 and I was diagnosed with MCTD a year and a half ago. Other seemingly unrelated stuff come with the package- like chronic gum disease and mouth sores, and allergies to almost everything that can be smelled! (Dust, perfume, pepper, house cleaning substances and almost anything with hair...). So, Are multiple allergies (respiratory ones) realted to MCTD? And if they are..is there any hope whatsoever that I can treat them for good (using non-cortisone allergy shots and maybe other things if available)? And while MCTD is permanent and can only be controlled in the best case scenario, I m wondering if these conditions that I think came with it can be permanently cured in any way? Because I had these allergies for a really long time ago and my rheumy says they re not related to MCTD, and they caused enlargement in my nasal corneas, I had them ironed months after my rhinoplasty (because it was deviated causing a constant blockage). So I did everything I could so far and nothing worked, I even noticed that the nose corneas have enlarged again! IS THERE ANYTHING ELSE I CAN DO THAT WOULD BE ANY GOOD??!!!