A ducktor.
No
Such a person, who just treats feet, is a Chiropodist.
they can get sick
Take it to a vet that treats large animals.
The person who treats foot complaints is a Podiatrist
Yes, humans can eat guinea pig treats. However, if you eat enough of them, you will probably get sick.
if the person is sick, and you are close enough to the person, then yes you can get sick. But if you are sick and you breath on someone, then that person could get sick. If you or the person who you are breathing on are both healthy, then it would be hard to get sick, in fact if someone is going to get sick, then it will be the person who you are breathing on.
A person who treats his or her guests well is referred to as a "good host", or a "gracious host".
When I am sick, I seek medical treatment from a healthcare provider such as a doctor or nurse. They are trained to diagnose and treat illnesses to help me recover.
Of course, if the person giving the treats is inconsistent or intentionally confusing in the way the treats are given.
No, Hospice is a specialized form of Home Care, but for the terminally ill. Hospice treats people with dignity and physical care until the person's natural death.