Most of us that fish bullheads for flatheads have been stung a few times by bullheads. Bullhead fins are very sharp and it is easy to get stuck by one. Their fins can cause a painful sting and sometimes swelling and infection.
I was reading through a catfish forum on another site and came across a post by a guy that was recommending a product called: Sting Kill for Bees and Wasps. Here is a website for the product: http://www.sting-kill.com/ He claimed that Sting Kill immediately relieves the sting from bullheads. He swore by the product.
I thought I would post this so the next time you are in the drugstore or pharmacy you could look for some. The website says that WalMart carries their product. I plan on getting some and keeping it handy in my boat and tacklebox.