Dimethyl Sulfoxide (DMSO) is an organic solvent (I may not be a vet but I am a biochemist) which means that it dissolves a wide array of molecules that are normally in a stable form. DMSO is therefore capable of carrying toxins with it into the bloodstream if there is a point of entry. The bright side is that DMSO itself is not overly harmful as is a potent antioxidant and anti inflammatory agent, hence its use for reducing swelling. Although it is approved for use in dogs and horses, the FDA has refused to approve its use as a topical application in humans because of its solvent properties (so use gloves too).
So whatever you mix it with will end up in the bloodstream if it comes into contact with an open wound, most linaments/topical applications are great on the surface of the skin but not designed for the circulatory system.
I would ask a vet about using DMSO on open skin. I suspect most will say no. As Starline said, her vet recommended this although she didn't mention whether this was for treatment of an injury where there is broken skin or not - just be careful with DMSO.
Good luck, I have seen many horses have good recoveries from bowed tendons, just be patient recovery time will vary depending on the extent of tendon damage, again, a vet will give you the best idea on this timeframe for your individual horse. Keep us updated!
DO NOT wrap the leg if you don't know how. You can cause major damage to tendons by improperly wrapping. For now what you need to do is cold hose and rest, Bute if you have it. I would be really concerned about that wound (even though it is healing) as it could mean the tendon is injured and infected which would be a much more serious problem than a bowed tendon.
Glad you're having the vet out, it is the right thing to do for sure. Over the weekend cold hose as often as possible but I very strongly caution against wrapping if you haven't been shown the proper technique. I have seen some real wrecks from poorly wrapped legs. You seem like a really great horse owner, this one is lucky to have gotten you!
I couldn't agree more w tealmutt. Wrapping is an art IMO....and if you don't know the proper way to wrap you can cause more damage then good.
You've gotten great advice from Star and others on how to deal w a bow, but yes, perhaps hold off till the vet can show you how to wrap. Or if you have a more experienced friend to help you that works too.
Also just like to add, that the pic of the bow you show doesn't look too bad....meaning I have seen way worse bows in my day (of course without seeing it up close couldnt say that for sure)......but judging just from the pic, with proper treatment, and vet attention, I would say your horse stands a good chance of recovering nicely from his injury.
Yes, he has bot eggs on his legs and I'm taking care of those today! I have Bimectin and I'm getting a bot knife. How often do I need to deworm him in order to get rid of the bots and prevent future occurrences? I'm more familiar with dogs and they have to be dewormed once every two weeks 3 times if they have worms. So I'm wondering if it is the same??