I suppose you have had al vaccinations you can think of then.
Those are most likely the source of catching up with everything that flies and hangs around.
Vaccinations kill your immunity system.
A good classical homeopath can help you get rid of the vaccination damage even after 30 or 40 years and that will most likely be the end then of your allergy history without havin to take MMS all the time.
Classical homeopathy even goes into the energetical level where there is nothing more even for MMS to react with.
I know there are classical homeopaths on the forum so if they could please step forward and tell their story.
You will find all info on that subject here:
http://www.tinussmits.com/english/