Red Areas on Forearm Post Radial

Are you using any cleaning products or tegaderm “sticky” around the area with the drape? It could be an allergic reaction to this. Also, they may be allergic to the type of hemostasis band. I have not seen this before in thousands of cases. It would be good to do a case discussion.

Question: 

We have seen an increase in red areas on the forearm post radial cath. They vary in sizes and are slightly raised. They are usually gone before discharge. Any ideas?