To prevent a user changing their password too often you can set a minimum number of days before they can change the password.
Iji gbochie onye ọrụ na-agbanwe paswọọdụ ha mgbe mgbe ị nwere ike ịtọ ụbọchị ole na ole kachasị elu tupu ha enwee ike ịgbanwe paswọọdụ.