Head and neck cancer pain · St. Louis

Head and Neck Cancer Pain

Head and neck cancer pain is treated by combining medication with image-guided nerve blocks (trigeminal, sphenopalatine ganglion, stellate ganglion and occipital). The blocks lower the dose of pain medicine needed. We treat the pain alongside your oncology team. We do not direct your cancer care.

Pain from head and neck cancer — and from the treatment for it — is among the hardest pain in medicine to control. It is also one of the few places in this clinic where opioids are part of the answer.

What causes head and neck cancer pain?

It usually has more than one source at once. That is why single-agent approaches disappoint:

  • The tumor itself — growing into or pressing on nerve, bone or soft tissue.
  • Surgery — neck dissection in particular. It can leave lasting shoulder and cervical (neck) pain and injury to the spinal accessory nerve.
  • Radiation — acute mucositis (sore, inflamed lining of the mouth and throat) during treatment. Later come fibrosis (scar tissue), trismus (a jaw that will not open fully) and neuropathy. These can appear months or years afterwards.
  • Chemotherapy — peripheral neuropathy.

Some of it is nociceptive (from damaged tissue) and some is neuropathic (from damaged nerves). The two do not respond to the same things.

Are opioids appropriate for head and neck cancer pain?

Opioids are a poor choice for migraine and for most primary headache. They work poorly there and cause rebound. Cancer pain is a different clinical problem and a different calculation. Opioids are a legitimate and often necessary part of head and neck cancer pain management. Withholding them here would be a failure of care, not good stewardship.

What good practice does mean is that opioids are not the only thing offered. Interventional options can reduce the dose needed. A lower dose means less sedation, less constipation and better function — which is usually what patients actually want.

Which nerve blocks help head and neck cancer pain?

All of these are placed under ultrasound or fluoroscopic guidance. That matters more than usual here. Surgery and radiation distort the anatomy. So landmarks that were reliable before treatment are no longer where they should be.

We work alongside your oncology team

This is a pain service, not a cancer service. We do not direct your cancer treatment. We do not replace your oncologist. We take on the pain so the rest of the team can get on with treating the disease.

Frequently asked questions

Can a nerve block lower how much pain medicine I need?

Yes, and that is the point of adding one. Trigeminal, sphenopalatine ganglion, stellate ganglion and occipital blocks work alongside medication. They can reduce the opioid dose needed. A lower dose means less sedation, less constipation and better function, which is usually what patients actually want from their pain care.

Can pain from radiation start months or years later?

Yes. Radiation causes mucositis during treatment. Later come fibrosis, trismus and neuropathy, which can appear months or years afterwards. Some of that pain is nociceptive and some is neuropathic. The two do not respond to the same things. That is why a single medicine so often disappoints, and why the source of the pain has to be sorted out.

What if my mouth is too painful to open for treatment?

A sphenopalatine ganglion block goes in through the nostril, so nothing has to go through the mouth. It treats midface, nasal and palate pain. That makes it the practical choice when the mouth is painful or will not open far after surgery or radiation.

Why does image guidance matter more after cancer treatment?

Surgery and radiation distort the anatomy of the head and neck. Landmarks that were reliable before treatment are no longer where they should be. So a needle placed by feel is more likely to miss. Every block here is placed under ultrasound or fluoroscopic guidance. It shows the target instead of estimating it.

Will a pain clinic take over my cancer care?

No. This is a pain service, not a cancer service. We do not direct your cancer treatment. We do not replace your oncologist. We take on the pain, with medication and image-guided nerve blocks, so the rest of your team can get on with treating the disease.

Sources

  1. Bossi P, Giusti R, Tarsitano A, et al. The point of pain in head and neck cancer. Critical reviews in oncology/hematology, 2019. PMID 31092385. pubmed.ncbi.nlm.nih.gov
  2. Macfarlane TV, Wirth T, Ranasinghe S, et al. Head and neck cancer pain: systematic review of prevalence and associated factors. Journal of oral & maxillofacial research, 2012. PMID 24422003. pubmed.ncbi.nlm.nih.gov
  3. Khawaja SN, Scrivani SJ. Head and Neck Cancer-Related Pain. Dental clinics of North America, 2022. PMID 36404073. pubmed.ncbi.nlm.nih.gov

Booking online shows our scheduled openings; call or text for hours that are not listed. Please contact us before coming in rather than arriving unannounced — we need to know what is happening to have the right treatment ready.

A note on coverage, and on timing. Same-day treatment and prior authorization do not run on the same clock. Many insurers take days to weeks to decide, and some acute headache treatments are not covered at all. Your headache will not wait for that process.

We will verify your benefits and, where a treatment needs prior authorization, we will attempt to obtain it. An authorization confirms that a service meets criteria for review — it is not a guarantee of payment, and no clinic can make that promise on your insurer’s behalf. Where something is unlikely to be covered, or cannot be certified in time to treat you today, we will tell you before we treat rather than after, so the decision is yours. Payment is due at the time of service.