for about a week I have been experiencing a bruised feeling all over my right leg, and about 3 nights ago I noticed some blistering on the knee and a deep red rash on the calf. There are a few other little spots, but none of the really itch, however, they are sore to the touch. I hope you can give me some insight into what could be the cause. I have had poison oak, ivy and sumac, and although this looks similar, there is no itching.