Sore throat and sinus problem why does everything i eat taste salty?

With infections of the nose or throat, the taste buds are indirectly and directly affected.

First, your sense of smell contributes to your taste and with a sinus infection your sense of smell will be decreased. Second, where there is a sore throat, there is swelling & inflammation that will directly affect the taste buds, which will cause them not to work that well. Salt taste persists the best. Would you like to video or text chat with me?