He may have landed on his nose and injured it. I assume he is an albino if the nose is pink? I would just let him rest and recover, being out for 5 minutes isn't going to hurt him but falling certainly would frazzle him.

What size tank was he in and is the tank cycled and/or treated with dechlorinator? Just curious if he's flailing trying to get out some times that means something in the water is irritating him, like chlorine or ammonia.

I had one of my frogs jump out and fall at least 4 feet and land on a hardwood floor and he was out for a few hours until I finally found him under my lounge chair and he didn't seem to suffer negatively from the experience.