this made by  Agumonofalchemy and  Pichuboy got for me

Ricky is a doctor so all ways want to heal others so he become a doctor when he was a Quilava.

he sigh up for medical school being smart he pass with flying colors but when he evolve into Typhlosion something change in him he don't know what made this change but he found that his fire can heal all of his fire moves become healing moves but he finds that if he touching someone when using his fireing it heals them 10X times more if he was just to use a Flamethrower.

over time time many Pokemon come to call him as the Great Diaper Fire Healer even at the age of 45 he still do his job going around healing who ever he comes.

And for why he wears diapers he both loves and needs them as he was never can get out of diapers after he was in a accident when he was a Cyndaquil that he will never talk about to any one but he loves diapers any way so he don't mind.