Another Stupid Car Question?

I'm basically car engine illiterate, so I apologize if this is a stupid question. I drive a 2002 Pontiac Grand Prix. A few days ago I spilled a little bit of oil as I was adding some. It resulted in a small fire as the engine was hot. The fire burned for less than 5 minutes..basicall while I tried to find something to put it out with Instinctively, I threw flour on the fire to smother the flames. It worked, but I ended up with flour residue burnt to some of the pipes of the engine...made it smell like flour was burning when I drove it. I bought some engine degreaser, sprayed it on, let it set, and rinsed it off. Took it in for an oil change the next day.The residue has since burnt off, but now there seems to be some smoke coming from the oil dipstick. How concerned should I be about this?