We found some helpful information on controlling excessive sweating on our website here that you may want to have a look at. You’re likely to hear some suggestions from our community as well, as they are able to, but we wanted to point you to the great wealth of info on our website, as well as our free and confidential helpline at 0808 800 0303. You don’t have to be a Person with Parkinson’s to call, and your questions needn’t be medical. The staff are incredibly knowledgeable and anything they don’t know they can find out.
Best wishes to you and your Mum,