The Eustachian tube connects the throat and the middle ear (the site of a typical  ear infection ) and allows air to travel between them and equalize the pressures. When the Eustachian tube is temporarily pinched off, pressure can build up in the middle ear.
Visitation is a matter of state law, but generally speaking, every state allows parents to exercise a reasonable amount of visitation with their children, which generally means enough time to establish and maintain a meaningful relationship.
The parent with sole physical custody usually is called the custodial parent. The other parent is called the noncustodial parent and usually has visitation rights. The parents can agree to visitation terms or the court can decide for them if they canât come to an agreement.