Dermoplast or Lanacane?

Alright, so everyone is telling me to take Dermoplast to the hospital to help with after labor pain. I went to my local drug store and found dermoplast with the red lid(which I did not buy because everyone said not too!) I did find Lanacane First Aid spray and the active ingredients are benzethonium chloride and benzocaine. Did I get the right thing or should I take it back and get the Dermoplast with the blue lid?