The most urgent thing that would require a visit to the emergency department would be an allergic reaction. The duration of time since this started makes a life-threatening allergic reaction less likely thus an immediate trip to the emergency department for this rash is not really indicated. However, you need to call the child's MD to discuss what to do about continuing the medication. And obviously if the child gets worse in any way a trip to the emergency department is then needed.
Feel free to ask a follow-up question.
The forehead temperature often runs low. If you are worried take a rectal temperature. I wouldn't treat with benadryl for a presumed allergic reaction since we are presuming that it is not an emergency and the child is acting normal.
PLEASE CLICK ACCEPT.
AND A BONUS IS ALWAYS APPRECIATED.
No; 96 or above rectal is not low enough to worry about in a child that is acting perfectly normally.
And a BONUS is always appreciated.