I assume that you are not taking any sulfas at the time.
MMS has nothing in common with sulfa drugs and alergy to sulfa drugs should not constitute any likelihood that you may be allergic to Miracle-Mineral-Supplement . If you were to be allergic to sodium, or oxygen, then you may be allergic to Miracle-Mineral-Supplement .
If you are on any drugs, Miracle-Mineral-Supplement is going to oxidize them and therefore neutralize them. Therefore, it is futile taking MMS along with any medications as these will be neutralized by MMS and MMS activity will be somewhat diminished by being spent on them.