The method is to treat the child with respect. it is to treat the child as important as you are. it is treating him with the same respect with which you wish for him/her to treat others, you and him/herself.
There is no difference whatsoever between corporal punishment and abuse and those who think otherwise are deluding themselves. Corporal punishment is a pseudonym for abuse. (Shakespeare enters, stage left: “A rose by any other name would smell as sweet”, thus meaning the names of things do not matter, only what things are).