help with picture mail

[yunior]

hey guys i need your help. whenever i send a picture mail the phone saves the number. so the next time im going to send another picture mail when im going to write a number o contact the first numbers it shows are the ones i have send messages before. i know for some people this is convinient. but i dont want those numbers to appear the next time im going to send a picture mail. could you guy tell me how to delete them from the list thank you for your help.