@Payne regrettably I have not used anything to control the sweating. I am still suffering.
The medication that inhibited the sweating is a bladder control medication for Urge Incontinence, Oxybutynin. It not only inhibits sweating but causes overheating and very dry mouth, eyes and other orifices. I am currently using a patch which is better, I cannot use the tablets because of the horrid side effects. I have tried many of the other bladder control tablets and they all have the same effect for me.
It doesn't seem to inhibit the sweating like it did, now that I am on the AI and Palbociclib.