Are You Kidding Me?

So last week, I get a bill in the mail from my Dermatologist Office.  Hmm, I gave them a co-pay at my last appointment, so why would they be sending me a bill?  I open said bill, and gasp in horror - it's a statement from my appointment, that shows a charge for "Destruction Benign Lesion" for $120, plus another charge for $90, making a grand total of $210, of which I am responsible for $56.64 (after insurance ponied up for $113.36 and I chipped in an additional $40 co-pay).  Are you freaking kidding me - $210 for a squirt of liquid nitro? Heck, I can buy it over the counter for $20.  So that would mean it was an extra $190 for the Doctor to squirt the nitro instead of me.  I mean, my Doctor is handsome and all, but not that handsome. Sheesh!!!