Sulfa Antibiotics vs Sulfur?

Masso thank you for replying! So they are 2 totally different things? And it’s okay to take MSM if I have a sulfa allergy?

As it is an organic compound I don't see a problem and you are welcome.

"Sulfa is different from sulfates and sulfur. Both sulfa medications and sulfite can cause allergic reactions, but these two conditions are not related. A person who has a sulfa allergy will not necessarily have a sulfite allergy, so there is no cross-reactivity."

Medical News Today

"Sulfa is a name of a group of antibiotic drugs that has a sulfonamide functional group in their structure, while sulfur is a chemical element having the symbol S and atomic number 16. Hence, the key difference between sulfa and sulfur is that sulfa is an antibiotic drug, whereas sulfur is a chemical element. Moreover, sulfur occurs naturally, but sulfa is a synthetic compound, which does not occur naturally."