What should I expect at the doctors?

So I stepped on an iPhone charger cube and one of the prongs went all the way up the middle of my foot. We got it out and after that we put ointment and a bandage. Then that same day I rinsed the wound with water and put on the ointment and a bandage. That was yesterday. Today it is sore to walk on but doesn't hurt when I'm laying down. Today I took off the bandage and put on ointment and replaced the bandage and when I looked at me foot I saw a small red gash with a purple ring around it. IIm going to the doctor and I want to know what to expect. I have never taken a tetnas shot before

You don't need a tetanus shot because you don't have a wound caused by rusty metal. The doctor will look at your foot and tell you to keep doing the things you've been doing. Why are you even going to the doctor? You have a minor puncture wound that will heal just fine on its own. The doctor can't do anything for you.

They will clean it out, give you a shot., WHICH YOU ALREADY KNOW!