Hello girls. My son is 4.5 months old and we've had thrush in his mout…

Hello girls. My son is 4.5 months old and we've had thrush in his mouth for a month now ?‍♀️and it just won't go away. What I've tried, what I've wiped with - nothing helps. It only helps for one day and then it comes back ?‍♀️?‍♀️?‍♀️?‍♀️?‍♀️Maybe someone has had this situation? What should I do? From what could it be? Please tell me ??????