Swollen? It may be due to the dental work done. I'm not saying its the filling but rather the process of getting in there to remove the cavity and fill the tooth. Unfortunately small children are harder to work on due to the limited space and small mouths so it may been a
littleLittle noses decongestant
Little tummys more difficult and she may be a little bit more swollen due to that. I'd monitor the situation. Does she have any pain?