4 days post-op: bumpy itchy rash started the second day on my wrist, It spread to my eye and thumb. Is this a concern? (Photo)

first finger I have gone to the walk in they told me to start with Benadryl & fill the Rx Prednisone. I have stopped everything. taking Prednisone (2nd day)Rash is not getting any better it actually has spread onto my stomach, back, legs and started on the other eye. I called my surgeon He said that I cannot be allergic to the implants (must be the meds) I explained I have been off of them since the second day and now it is day 4. What should I do? Am I allergic to the implants??