Islamic Interpretation of Dreams (Ibn-i Sirin):

(Blowing one’s nose; Snot) In a dream, nasal mucus means a son or a daughter.

To blow one’s nose in someone’s house in a dream means marrying someone from that family, or betraying the house master by having a secret affair with his wife.

If a mother blows her nose in a dream, it means that she will wean her child.

If the wife of such a friend wipes the nasal mucus of her husband’s guest in a dream, it means that she will betray her husband and carry the child of his friend.

If one blows his nose in a dream, it also means paying a debt, or it could mean rewarding someone for a favor. Blowing one’s nose and using someone’s bed sheet in a dream means betraying him with his wife. Blowing one’s nose in someone’s handkerchief in a dream means betraying him with his house servant. Clearing one’s nose from a nasal congestion in a dream means dispelling distress. Wiping and washing someone else’s nose in a dream means concealing his secret life in front of his wife. Eating one’s nasal mucus in a dream means cheating one’s son in his money.

A congested nose in a dream represents a pregnant wife.

If a beast or a bird comes out of one’s nose when he sneezes or blows his nose in a dream, it means that he will beget a son from a secret affair with a servant or an employee.

If a sable comes out of one’s nose in a dream, it means that he will beget a son who will grow to become a thief.

If a pigeon comes out of his nose in the dream, it means that he will beget a girl that will grow to be insane. Blowing one’s nose and using one’s own shirt in a dream means committing adultery with a sacrosanct member of his own family or a blood relation.

Ifone sees his nose gloppy with mucus in a dream, it means that his fecundity and sexual appetite will bring him many children. Nasal mucus in a dream also means an illness, a cold, charity or a will.

(Also see Phlegm)