DO NOT put anything in the mouth. That is the movies only.
If seizures recently started you may need to find a hospital or doctor that is trained in neurology (electrical activity of the brain) and get examined.
The "recovery time" after a seizure can last from almost nothing to half an hour until the person is back to functioning normally. Almost every case if different. People can feel sleepy (exhausted) after a seizure if it was one of "the big ones". That side effect is common.