Churumbeque maybe the OP is ignoring this post because she doesn't need to hear your criticism. Animal cruelty indeed. A little harsh maybe? Back off.
The OP did buy first aid products and after a day there is marked improvement. Rather than assume she is not spending enough time calling a vet, I see that she is spending time looking after her horse and will continue to do so.
Personally, if this was my thread, I would not be replying either. It is for this reason that I rarely, very rarely ever ask for input about a physical problem with my horses here. I currently have something I would like some other views on but I haven't posted because I don't need to hear the same old routine: call the vet, call the trimmer, you're abusing your horse, if you can't afford it you shouldn't own a horse, blah, blah, blah
Starlinestables gave some great input and advice for going forward.
I hope all continues to be well with the OP's horse.