Can 2 year old take benadryl with prednisone?

First...Benadryl for toddlers is regarded as a bad thing unless your doctor has stated it's safe.

I have a 22 month old daughter who is 35 inches tall...and 33 lbs (she's very tall for her age).

During her last major cold, her pedi told us she could take the normal Tylenol dose depending on whether it was infant or childrens suspension and 3/4 tsp of Benadryl.

If she's not taking the Tylenol, a 1tsp dose of Benadryl was allowed, but the combo of full doses of both caused her to be so drowsy she couldn't function.

I'm not a doctor, so please don't take my advice as solid or golden, but I know under medical supervision they will sometimes allow for the combo.