Hi, I'm a 61 year old female and just had a stent placed in my LAD artery 3 weeks ago. They placed me on Plavix at that time for the next year. I took the blood thinner for 2 weeks before reaction started with hives, itching, spots and swelling that just showed up one morning. Benadryl did nothing to relieve the reaction and had to go to the ER to get relief. My cardiologist put me on a prednisone tapper. They would not take me off of the Plavix to another alternate so I'm wondering when my prednisone tapering is over will the reaction come back? They said they rarely ever hear of a allergic reaction and I'm in the 6% of people who have had them. It's enough to deal with all the new meds and then have a reaction!