Hi, @sammy15 Mouth sores are a real problem, aren’t they. I got them when i first started high dose prednisone. The doctors i had worked with told me to use a salt and soda rinse. I used a 1/4 tsp each of salt and baking soda in warm water and rinsed my mouth several times a day. And I avoided store-bought mouth wash and citrus. The sores cleared up pretty fast. I hope you have good luck, too!