Need Help: My Mother’s Persistent Rash (Possibly Ringworm) Won’t Go Away

My mother, a homemaker, has been struggling with a rash all over her body for a while now. We initially thought it was ringworm and have tried multiple medicines and home remedies, but nothing seems to be working. The itching is unbearable, and I hate seeing her in so much discomfort. We’ve consulted doctors, but the condition persists. Has anyone dealt with something similar? Are there any specific treatments, medications, or tests we should consider? Any advice would be greatly appreciated. Just want to see her get some relief.