For some reason I was thinking about this.
It sounds like you really want or need to douche with MMS+DMSO.
(and I would think others would also be interested in this)
(FTR: NOTE that you are NOT supposed to use DMSO in enemas!!)
You might want to "get creative".
I don't know a lot about "lady parts", as it were.
(not as much as I would like to, anyway -- buh-dum-bump)
It has been the butt of some jokes (oops, I did it again), but
you might try a Turkey Baster.
They usually have a rubber bulb, but used in the "correct position",
the fluid shouldn't come into contact with the rubber bulb.
They are usually made of hard plastic, which I would think would be okay with DMSO.
You should probably double and triple check that, if you can.
I have seen them made out of glass, which would be ideal in one sense,
but potentially dangerous for bodily insertion. Perhaps unless it was made
out of "unbreakable" pyrex glass. Or maybe they are made very sturdy for
use in the kitchen around food.
So that could be a workable solution.
This PDF document chart shows what reacts and does not react with DMSO.
So ideally you would want to verify what kind of plastic anything you use is made of.
www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/944/265/d2650pis.pdf
Another potential option is a flexible plastic tube.
You should probably verify what the tube is made of, or find one made out of
the correct kind of plastic.
A piece about 3 feet long should probably work, maybe 3/8" or 1/2" in diameter?
You could round and smooth one end with a razor blade or Exacto knife.
Then just use it like a pipette (chemistry) or like siphoning gasoline from a car tank.
You suck fluid up into the tube to some level, and then blow it out ("in").
This could be somewhat ideal, because you could easily control pressure and volume,
and the volume could be rather large per each application, and with multiple applications.
Or maybe this will get your creativity going and you can come up with a better or
workable idea.
If you do find something or come up with something, please post about it so
other people can know about it, too.