I have a very itching rash that has developed over the last two days. It makes my skin thick and it itches so badly. I recently had a heart attack and the dr. put me on Plavix. I have taken Plavix in the past years back and it did not bother me but that is the only thing different in my meds now. I also got into some very itchy tomatoes vines to so I have never been allergic to tomato vines but I am not sure what is going on. I just cannot get the rash to stop itching. It is on my face stomach and chest and shoulders. It is not terribly large areas but does not seem to be trying to go away.