Interdigital furuncolous

I for quite some time now.We've struggled with allergies with our french bulldog, pablo. He was on cytoppoint for many months. Then, he produced what the vet called an interdigital cyst, this grew quite large, which resulted in him having one of his toes amputated, ever since he's had this toe. Amputated, he seems to have manifested more into digital cysts on these other thought, and on his back feet as well. He's been on steroids now as an anti-inflammatory and antibiotics. Now, for several months. Is front poor now as grown, and into digital cyst? That's so big now that it's causing him to limp it weeps, it bleeds, and it just seems to be getting worse. We had a biopsy done, the vet has said.It's an inter digital pharynchallosis, my understanding was that it only affected, maybe warm, or maybe even two of the poors, but it seems to be on all four paws now and the is on further.Steroids, strongest steroids, he's on antibiotics, and he's arm, also autoimmune steroids as well.Now, but the thing is, it doesn't seem to be getting any better.It just seems to be growing and growing.We just need advice because it's it looks bad And be grateful for any advice about this. I just need it sorting out very, very, very quickly. Maybe from alignment's terms, you know, I feel like it's. It's a terrible situation, and I just need some advice that's actually going to get rid of it or help it to hale up as fast as possible and get me dog happy again, because at the moment.He's just so miserable.Be grateful for any advice.Thank you