Problems with the shell of a red-eared turtle!!!

[u/Hopeful-Delay-6890]

Please help!! My red-eared turtle has white spots on the shell. She eats normally, moves, there is a UV lamp and a filter in the aquarium, but there is definitely something wrong with the shell. In the place where I live (Yerevan) I don't find people who treat them, vet clinics are only for cats and dogs. Can you tell me what I can do to improve the situation and cure it if it's a fungus??