If you cant find a nest dont worry about it. If there was a nest close by you would see a lot more than one wasp. In order to control a wasp population you have to control the nest. Stop worrying about what you cant control. even if you got stung you wont die it just hurts a bit for a few hours. If you were to develop an allergy it takes more than one sting.

Okay so the other day I was taking a nap and I woke up and saw a wasp flying around my room, my windows were open so it some how must have gotten through the screen. I believe this was like Wednesday. Well anyways, now I hear constant buzzing by like my walls and Ive seen multiple wasps outside my windows. I'm afraid the wasps are somehow going to get into my house. I've told my mom and she went outside and looked up by my windows and she didn't see a nest or anything so we don't know where they are. She thinks they're in the siding or our roof since my room is on the second floor of our house. Everyone keeps telling me not to worry because they can't get inside if my windows are closed but I'm still scared. What should I do?