How and why does someone take DSMO with MMS?

I have Part A and B and DSMO. I have used part a and B for asthma. Would DSMO assist with asthma. The asthma while taking MMS worked but as soon as I stopped after the 1000 protocol if came back with a vengeance. I wondered if adding the DMSO would improve the results?
IN addition, I have purchased from two different sellers. The first product mixing part a and b produced a very bright yellow activation. The second sellers product produced when activated a yellow brown colour. What does this mean?