Daniyal has an autoimmune disease. We need our help

Gadzhiev Daniyal has autoimmune diseases: celiac disease and Behcet's disease. In simple terms, the boy cannot eat ordinary food. He is allergic to all foods. Now Daniyal has a relapse. The whole mouth and intestines are in the ulcers. It hurts him to go to the toilet. He had to switch to an expensive formula feeding to make sure he didn't get any worse. You can't eat anything but this mix. One tutu costs 3000₽ and is only enough for two days. Now it is vitally important for Daniyal to go to St. Petersburg to have his doctor examine and prescribe treatment.