How do you clear a child's nose of a cold in two year olds? My son is …

How do you clear a child's nose of a cold in two year olds? My son is screaming and fighting with me. We barely hold him back from his father so we can remove the mucus from his nose. I explained to my son that it is like this and why. But all in vain, maybe you have some methods? He doesn't want to cry himself, but his nose is very blocked, which makes him sleep practically not at night because of this ?