I do not believe that MS would cause your allergies to be any worse. I understand that if one has allergies they may get worse with age and in some cases go away altogether.
This year in particular, seems to have shown an increase in people's allergies. You are not along. Where I am in Virginia, the seasons seem a little mixed up, with it being hot as the dickens when we aren't in that season or it's been cold when it should be warm. We even had some snow here in April. So I think the plants and trees are a little confused too and putting out there allergens big time, all caused by the confusion in seasonal temperature's.
You might want to bring this up with your family doctor, since I do not believe that MS can cause colds, flu's or allergies, to become worse. If anything they in themselves, make MS worse.
Hope you feel better soon.
I didnt think so, but they are so severe and lasting for a long time now. Hopefully they will improve..a little better today but then it could be they are trying to fake me out..lol