Dennis the Menace (1959)

S4E22 Wilson's Allergy

Mr. Wilson believes he has developed an allergy to Dennis, as he can't stop sneezing whenever the boy is nearby. However, it is eventually revealed that the real culprit is not Dennis himself, but rather the hair tonic he has been using. This misunderstanding leads to a series of humorous events as Mr. Wilson tries to avoid Dennis, only to find out that the solution to his sneezing fits lies in the products Dennis uses.