Acid taste in mouth all the time. Candy to have?

Hi,

I've been experiencing acid in the back of my throat and mouth for over 6 weeks. Doctors have me on 30mg lanzaprazole.

My symptoms are exactly the same.

I've been eating Gaviscon tablets like sweets to try and get rid of the awful taste that has made me feel really sick.

Can anyone recommend any lozengers or hard candy that helps take the taste away until I get to the bottom of what's causing it.

Thanks
Rob