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.
Is there such a thing as standard visitation? If so, what is it? Yes, the Texas Family Code contains a standard possession schedule that is presumed to be the minimum time allocated to the parent who does not have primary possession of the child. Here is the standard schedule: Parent lives within 100 miles of the child.