Urgently Need a Dermatologist for Severe Ringworm Infection

My brother, an athlete staying at a govt. sports hostel, got ringworm, and it has now spread all over his body. He has already tried treatment from 2-3 doctors, but there's been no improvement. Worse, it has now spread to my parents, and I’m terrified that I’ll be next. I’ve been avoiding going home out of fear, but I just want this to be cured and stop spreading. If anyone has faced something similar and found an effective treatment, please share your experience. I don’t care about the cost or location. I just need a good dermatologist who can treat this properly. Any recommendations would be really appreciated!