Rashes on body for over a year

My mom has had these rashes on her body for over a year. They do itch. Shes seen multiple doctors and dermatologists regarding and they say she has dermatitis and recommended a steroid cream, however she would need to apply it all over her body and that would obviously be costly. If anyone has had this or know someone who has this please lmk what has worked for you. I told her fabric softener on her laundry would play a part but shes so stubborn. Thank you in advance for any responses!