Hello, thanks for sharing your experiences of living with Parkinson’s. There’s a few threads on excess saliva that might have some ideas (although it sounds like you’re tried a lot of things!). This is one of them - Coughing & excess saliva
Hope it helps - and you can search for similar threads by typing ‘saliva’ into the search bar at the top of the forum.
You can also speak to our friendly helpline team who might be able to suggest some options or talk to you about surgery. You can give them a call on 0808 800 0303 - they’re open 9am-7pm Monday-Friday and 10am-2pm on Saturdays.
Charlotte - moderation team