A holistic approach is often needed to treat chronic pain conditions. Physiotherapy, modifications to work and home environment and psychological therapies are important aspects of patient care.
https://www.sapphireclinics.com/conditions/chronic-pain/
Medical therapy is dependent on the underlying cause of pain, as addressing the underlying cause is an important component of treatment.
For muscle and connective tissue pain simple painkillers are often first line treatment with stronger painkillers (e.g. codeine, tramadol and morphine) used in conjunction in severe pain. Some patients benefit from localised corticosteroid injections.
Neuropathic pain treatment is covered in greater detail here.
Medicinal cannabis can be considered when first line therapies have not achieved adequate symptom control.
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