I use mouth sore rinse all the time. I'm always getting sores. Yrs ago my mouth would peel. Big pieces of skin would just peel off

I get mouth and nose sores especially when I'm stressed

I get them when I have flare ups. My doctor gives me a prescription called Clotrimazole 10mg also known as Mycelex. They definitely effect my eating habits, if I eat at all. Hope you get better.

I would get sores when I was on a higher dose of prednisone. Are you taking that? Ask if they can do a culture to make sure it is not a fungal infection.

I used to get them all the time during flares but I haven't had sores lately. Lupus has moved onto other things in my body.