FMS dilators during radiation therapy?

Question from Diana H.: My name is DH, I am 60 years old and am currently undergoing chemotherapy combined with radiation therapy. I have anal cancer.
It is curable and I can feel my vagina tightening due to the radiation.
My oncologist recommended tampons with Bepanthen ointment.
Since I am a physical therapist, I googled and am very happy to have found you. I just ordered the medical dilation set (smallest).
My question to you: Can I use dilation during radiation treatment? Can I use lubricant? Or should I wait until the radiation treatment is finished?
Of course, I still want to live my sexuality at 60 and am looking forward to your order. You give me hope, I will tell my doctor that there are better treatment options for patients like me than a simple tampon 😁
Hope everything will be fine.

Answer: Hello Mrs. H., when my husband and I read your email, we immediately thought: yes, that's exactly how we see it too! And it's so difficult to reach women who share your fate. We would love to be found by more people who would benefit from our products (for example, trans women with neo-vaginas). If you have any ideas about this, we would be very happy to hear them (for example, self-help groups or similar).
To answer your question: you can certainly use the FMS dilators during therapy. Let your body's feelings and perception guide you!
Another suggestion from us: we have been developing vaginal stents for some time. These are basically small dilators that are worn completely vaginally and remain there for some time, several hours a day. We are currently conducting a small study on this. Would you be interested in taking part? We would then send you one or more models and you could gather experience and share it with us. We wish you all the best and much success with the therapy.