Most chiropractic medicine programs require that applicants have at least three years of undergraduate education, and an increasing number require a bachelor’s degree.  In either case, your undergraduate studies must include a prescribed number of prerequisite courses, as defined by the field’s accrediting body, the Council on Chiropractic Education.
One of the most common causes of neck pain is a pillow that is too large or too flat. Make sure that the pillow you use adequately supports your neck without causing any excessive bending. In other words, if lying on your back, your neck should not be bent unduly upwards. lf lying on your side, your neck should not be bent up or down (i.e. your spine should be in a straight line). Sleeping on your stomach with your neck twisted or bent to the side can also result in neck pain.

This article gives a well-rounded picture about things that can cause neck and arm pain. However, a patient should consult with their own physician rather than doing a self-diagnosis.  Some conditions, such as coronary artery disease (angina) or even lung tumors may mimic these conditions.  It is best to have a skilled physician perform a thorough physical examination when the symptoms described are present.

There are several schools of chiropractic adjustive techniques, although most chiropractors mix techniques from several schools. The following adjustive procedures were received by more than 10% of patients of licensed U.S. chiropractors in a 2003 survey:[73] Diversified technique (full-spine manipulation, employing various techniques), extremity adjusting, Activator technique (which uses a spring-loaded tool to deliver precise adjustments to the spine), Thompson Technique (which relies on a drop table and detailed procedural protocols), Gonstead (which emphasizes evaluating the spine along with specific adjustment that avoids rotational vectors), Cox/flexion-distraction (a gentle, low-force adjusting procedure which mixes chiropractic with osteopathic principles and utilizes specialized adjusting tables with movable parts), adjustive instrument, Sacro-Occipital Technique (which models the spine as a torsion bar), Nimmo Receptor-Tonus Technique, applied kinesiology (which emphasises "muscle testing" as a diagnostic tool), and cranial.[76] Chiropractic biophysics technique uses inverse functions of rotations during spinal manipulation.[77] Koren Specific Technique (KST) may use their hands, or they may use an electric device known as an "ArthroStim" for assessment and spinal manipulations.[78] Insurers in the US and UK that cover other chiropractic techniques exclude KST from coverage because they consider it to be "experimental and investigational".[78][79][80][81] Medicine-assisted manipulation, such as manipulation under anesthesia, involves sedation or local anesthetic and is done by a team that includes an anesthesiologist; a 2008 systematic review did not find enough evidence to make recommendations about its use for chronic low back pain.[82]
Many patients seek orthopaedic care for neck pain because orthopaedists are specifically trained to diagnose, treat, and help prevent problems involving the muscles, bones, joints, ligaments, and tendons. Although some orthopaedists confine their practices to specific areas of the musculoskeletal system, most treat a wide variety of diseases, injuries, and other conditions, including neck pain.
The treatment of neck pain depends on its precise cause. Treatment options include rest, heat or cold applications, traction, soft-collar traction, physical therapy (ultrasound, massage, manipulation), local injections of cortisone or anesthetics, topical anesthetic creams, topical pain-relief patches, muscle relaxants, analgesics, and surgical procedures. Home remedies for treatment, such as Jacuzzi treatment, neck pain relief exercises and stretches, and neck pain relief products such as neck pillows for sleep and hot pads can be very beneficial for relief of some forms of neck pain. There are many treatment options, depending on the particular neck problem and past treatment experiences. Alternative treatments that have been used for relief of chronic neck pain include acupuncture.
Temporal arteritis [healthline] is an inflammation of arteries in the temple, with a lot of symptoms: severe headache, fever, scalp tenderness, jaw pain, vision trouble, and ringing in the ears are all possible symptoms, along with neck pain. It’s almost unheard of in people younger than 50, and it usually occurs in people with other diseases or infections.
Sharp neck pain is not in itself a red flag. Believe it or not there is no common worrisome cause of neck pain that is indicated by a sharp quality. In fact, oddly, sharp pains are actually a bit reassuring, despite how they feel. In isolation — with no other obvious problem — they usually indicate that you just have a temporary, minor source of irritation in the cervical spine. Serious causes of neck pain like infections, tumours, and spinal cord problems tend grind you down with throbbing pains, not “stab” you.
Some skin problems on the neck can cause neck pain, but are usually obvious — most people will identify them as “skin problems on the neck” and not “a neck problem affecting the skin.” Herpes zoster (shingles) [CDC] causes a painful rash, cellulitis [Mayo] is extremely painful but superficial, and a carbuncle[Wikipedia] … well, it’s just a super zit, basically. If you can’t diagnose that one on your own, I can’t help you!

Among people seeking back pain relief alternatives, most choose chiropractic treatment. About 22 million Americans visit chiropractors annually. Of these, 7.7 million, or 35%, are seeking relief from back pain from various causes, including accidents, sports injuries, and muscle strains. Other complaints include pain in the neck, arms, and legs, and headaches.