How do you get rid of a swollen gland underneath the jaw bone in 14 year old male?

It is important to consult a medical professional if a 14 year-old male has a swollen gland underneath the jaw bone. The underlying cause of the swelling needs to be properly diagnosed and treated by a healthcare provider who has examined the person in question. Medical advice specific to an individual can not be provided online. There are several conditions that can cause swollen glands and the approach may vary, therefore self-treatment is not recommended