prednisolone rx for cat

about a year and a half ago I took my cat to the vet, for a wound that was forming on her neck. they said it’s just something that happens with some cats, where the skin cells attack themselves. they prescribed her a cream for the open wound and a liquid steroid. it worked great and went away. they did tell me it may come back, and that the steroid would help. i just went to order more of it because it’s come back, and they declined and said they’d need to see her again. i don’t really want to pay the $200+ for a vet visit when i know exactly what the issue is and how to solve it. does anybody know how/where i can order this prescription for my cat without needing my local vet to approve it? my cat is 4 years old and probably less than 10lbs she’s just a lil thing. she was prescribed liquid prednisolone, 20mg/mL

edit: i also don’t currently have a car, it’s got some engine issues and it’s been getting worked on. are there any online vets that do video calls?