Do we need to go to the doctor?

My two year old was stung by a wasp yesterday at 11 am and just started swelling today at 10 am.  He was stung above his left eye on his forehead.  Both of his eyes and his nose started swelling this morning at 10 am and has increasingly worsen during the day.  I called his pediactrics and the nurse told me to give him benydrel but she did not know how much to give him.  I am worried about him.  He doesn't act like it bothers him, but his face is hot where it is swollen at.  Should I take him to the doctor anyways?  Or should I wait a few more days to see if the swelling goes away?

[Dr. Kokil Mathur]

Hi
Thanks for writing to the forum!
Your nurse is right. Give your son Benadryl, call again and confirm the dose. You can also so give acetaminophen along with Benadryl. Apply ice packs. Below the skin there is a common space extending from forehead to cheek. After the sting water, blood, chemicals and cells that collect as a result move to lower areas like your eyelids, cheek etc. Hence the swelling will persist for some time, change color and then slowly disappear. Normally the sting is not a cause of concern.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!