Hi! I had RNY on Oct 19. I am about 2 weeks out. I have been taking Lovonox injections twice a day since the day of surgery; however, yesterday I started developing a rash around every injection site I have ever done. This morning they looked like welts. I was surprised by the sudden onset. I messaged my vascular specialist and his office has not read my message yet. Calling is a no go with NorthShore Hospital System, because of 90min wait times. Anyone else experience a bad reaction? What happened and how was it handled? I have two clotting disorders, so I am on it because I am at a higher risk for a clot.

Oh my. I have a clotting disorder as well and I'm on Lovenox for life since I've had clots while taking Coumadin and Xarelto. It sounds like you have developed an allergy to Lovenox itself or one of its components. Unless it could be something else, like the alcohol wipe you're using to clean the skin before you inject? In any case, not to scare you, but that's something you need to get checked out right away. An allergy can progress from giving you a rash to putting you into anaphylaxis. Not saying that's going to happen but it's a possibility. Hope you are able to get that figured out quickly! Lovenox bruises are bad enough, no one needs hives or welts on top of them!

Thanks for your detailed reply! I was worried too. The doctor was out of the office yesterday. They said to stop the lovonox and start Benadryl immediately. I will be taking Arixtra instead. Hope this works!