OK, that information helps!
When you combine MMS and Citric Acid, it produces a gas (along with some other things) called chlorine dioxide. CDS is the liquid form of this when you infused chlorine dioxide in distilled water. It's relatively new - has been around since last November - the advantage is that it is easier to take, the taste is not so strong, you don't seem to have the nausea and diarrhea at the higher doses. It would allow her to take higher doses. The problem is that there are not many people in the UK that actually make it. Michael can ship it to you, but it would be good for you to learn to make it. Jim Humble has a video about how to do it - since buying it in the UK is difficult. You can check each of the UK suppliers. Rev. Tilly (from the UK) knows how to do it, but she may be in Africa at this time, don't know.
If you can discuss this with your mom, tell her that all the reproductive organs are connected - like the ovaries and the uterus and the cervix (if you can keep it technical, maybe she won't be embarrassed about the conversation) - that is why a douche gets MMS to other areas of the reproductive system faster than just taking it orally.
Yes, in all honesty, I do think MMS will help your mom. However, the reason I asked about her state of mind is that I also believe that the patient has to want to be well. Whether it will significantly shrink the tumors in a week? Can't say - however if she starts now, she will have a baseline (since they may have grown since her last visit) to determine how well she is doing. They may show a shrinkage - or a maintenance - but if the tests show increased growth it may be because she has only committed to doing the MMS just now - and they may have grown between the last visit and when she started MMS.
DMSO is a solvent (also available from Michael - I'm not sure you can get it in the UK). It can be taken with MMS1 to help make it easier to take. Michael has a lot of experience with DMSO. I have used it for pain in my hands. Here's a good link about ithttp://en.wikipedia.org/wiki/Dimethyl_sulfoxide It is readily available here in the states, but I've heard not so available in europe.
Namaste, and blessings on this journey for both you and your mom