Ok, going to share our experience and plug a guy's product that did what a vet was having trouble accomplishing. In short, we have a chestnut TB/Paint mare. She had aural plaque for years. Different vets said...it's common, just leave it. I hated the stuff but followed the vets' advice. Mistake. It grew into a large sarcoid on the inside of her ear. Almost a quarter size. Our holistic vet did one session of freezing. I didn't like the results. Pretty much nothing. The edges fell off but I knew I wasn't going to spend $160 a pop for her to do 2 or 3 more sessions. Our vet mentioned using "bloodroot" as another option if freezing didn't work. I found a product made by a horticulturist, his website is cleanhorse.com. The concept with sacroids is they are pretty much like warts. The body doesn't see it as any different from other tissues so it gives it a nice blood supply and lets this thing grow and exist. Supposedly, according to the Cleanhorse guy, bloodroot helps the body recognize the sarcoid tissue like a foreign body and mobilizes the immune system to attack the tissue. He claims it works much faster than the bloodroot form the vets use. It took us from late April to late August, maybe because we took it really slow but that sucker is gone! Nothing but nice pink tissue where the sarcoid was.
We were going on vacation in June and that week the back of her ear looked all swollen and it was warm to the touch. I thought it was infected so we called the regular vet out. Aside from him telling us it was a normal reaction because there was a lot of "action" going on in there, he also said that if it doesn't get better she'll lose half of her ear (nice!). I thought it was really odd that he lamented how he has a case he's been working on for a long time and he wishes he was having the progress we were! I waited for him to ask me about how to get the product, but true to form, his schooling wouldn't allow him to consider anything that didn't come from a pharmaceutical company...
Anyway, the Cleanhorse guy has been using this product to help people get rid of cancerous tumors.
If you're not squeamish, and don't mind picking off parts of the sarcoid to get down to fresh, bloody tissues to apply this bloodroot paste, I would highly recommend giving his product a go. One tiny jar was all we needed. We still have plenty. We applied it every few days and chipped away at it every few days. Burt, (I think that's his name) is really talkative and always available to help you out.