Did you develop the taste since you started having the chronic sinusitis .And does it ever go away or is it long-term and if so have you asked your doctor about how to treat or get rid of it.Do you still have it now,how do you cope with it ?.I'm sorry if I'm asking too much its just that the taste is just so discomforting and i cant stand it.I cant focus at all cant think straight or even talk properly sometimes because of it.It's so revolting and It makes me want to eat all the time or chew gum just to overpower power the taste sometomws i just have tooth paste sitting in my mouth for a while until I spit it out . but it comes back shortly after.And again like I have said i have tried everything to get rid of it but it can't seem to just go away.told my doctor about it and she said it might be acid reflux and my dentist said it could be bad oral hygene.But im 100 % positive that its something else.I just don't know what it is,I've set an appointment with My dentist next week to see if she can have a look at my tongue and see if its an underlying oral infection.btw i had rcently just gargled my mouth with salt and water solution before bed to make the taste go away for a while .But I really hope it goes away for good because I just cant live with it anymoe.