I had a bad case of mouth blisters and sores while I was in Europe last year. I went to the doctor and asked for a magic mouthwash prescription. He had no idea what I was talking about! He thought it was a mouthwash brand.
I explained to him how it works but he still didn't prescribe it for me. When I came back to the States, I was still dealing with horrible mouth sores. My doctor prescribed a magic mouthwash with anti-fungal medication and the sores went away in one week. I just love this mouthwash, Europe needs to adapt this too.