well, sarcoids can be bad for sure, they can become costly and there are a lot of misinformed vets and people out there and if they are not treated correctly and the root cause discovered then they can return. I actually have a young friend that bought a horse without an experienced person and ended up with a horse that has the worst case of sarcoids I have ever seen. She was told they were skin tags! This poor gelding has them solid on his chest between his front legs and up the inside of both flanks and about an inch up the outside. They are big and thick. We researched and talked to vets and the news was basically they were going to be expensive to fix. I finally talked to Dr. Mark and he is so knowledgeable and he told me to try Thuja pills. 2 to 3 pills 2x day for 5days then 1x day for 5 days then every other day for 10 days then once a week until gone. He did say this may not work depending on the root cause of the sarcoids. It takes 4 to 6 weeks to see results if it is going to work. Well as of yesterday they are falling off! This stuff is seriously $7.00 a bottle. It treats a wide range of things in people and one happens to be tumors, and especially tumors caused from reactions to vaccinations. So this geldings sarcoids are probably caused from vaccinating. Once they are gone if she does not vaccinate him again he will probably be good. A lot of vets will swear sarcoids return because they are still there internally or in the horses system. This is not true, they return because the root cause of them is still being done. It is also bad to remove them if they are of any size. You are better off to try the above suggestion or get the cream treatment from vets. If you irritate them they do not go totally away and will come right back.
I guess in your case if you are not ready to deal with the sarcoids then I would not buy this horse. They will need treated in whatever fashion you choose to try. Left untreated they will spread and spread and eventually your horse will be put down. Right now it would not be a huge cost to treat them, if they get big like the gelding above and you do not try the Thuja or it does not work then the cost will be in the thousands.
Dr. Mark's website is this www.depaoloequineconcepts.com feel free to go read up in his library or contact him. He is truly amazing.
Good luck in your decision
added note to gallop... I am NOT profiting from this at all.. LOL we are currently treating a horse this way and from the advice of a well known licensed vet, that is well thought of for his outstanding treatment of horses in many ways. No he does not sell this product either, we bought it at a local pharmacy that carries it. It is approved for humans as well, we did not go grind up some Thuja trees and give it a shot I assure you. I used to scoff at treatments like this. Well I can tell you that the other vets said put him down. Or pay over $3000 to treat and it would probably not work. I have owned horses for over 30 years and assure you we would never do anything dangerous to a horse!!! Not everyone is trying to profit from something just because you have not heard it or tried it. If that was the case then dont worm a horse, it is a pesticide. So I apologize if you have had people take advantage this way but I am not one. I gave her the above website so she could get some other valuable information on horses. You cannot buy this treatment there I assure you.
Again sorry you have had such bad experiences that you cannot try something that may help. I normally would research something before assuming it is awful.
30+ years owning horses