Nope - no irony in the delivery. Just an imprecise grasp of the concept of "cure".

As to irony, I am as likely to pronounce the "iron" part the same as the word "iron" as not. Regardless, the two words don't seem to be related (iron is from prehistoric Gmc word probably of Venetic or Illyrian origin like OIr iarn ... akin to Venetic Isaras, a river; akin to L ira, anger; while irony is from L ironia, from Gk eironeia, from eiron, dissembler).