Depends on what you want done with the hand. Usually an Orthopedist for the bones. A dermatologist for the skin. A Plastic surgeon for skin repair. Or a neuro-muscular surgeon for crush injuries.
Orthopedic Hand Specialist
An Orthopedic doctor
I don’t know
veterinarian
dermatoligist
Handy man
Doctor
The formal name for a "cancer doctor" is an oncologist. An oncologist or "cancer doctor" diagnoses and treats various forms of cancer. Treatment may include radiological eradication (loosely means, "get rid of") or chemotherapy.
No, the formal name is potassium ethanoate
The Doctor names his daughter "Jenny." Jenny was created by an extraction of the 10th Doctor's DNA, from tissue in his hand. Jenny has the ability to regenerate just as the Timelord race. This means she has The Doctor's abilities.
You need a great deal of formal training to become a doctor. You need to train for many years in college and do many clinicals.
If you are addressing him/her in a formal way, yes, you refer to them a s doctor.
The formal name for vinegar is acetic acid. Its IUPAC name is ethanoic acid.
If being formal, he/she is referred to as doctor.
The formal term for a doctor who specializes in the human ear, nose, and throat is "otorhinolaryngologist". In Greek, the "ot" refers to the ear, "rhino" to the nose, and "laryng" to the throat. This is also how the rhinoceros got its name.