What is an OCB? How does it work?

An OCB is an injection given in the back of the head, above the neck, which aims to reduce irritation of nerves in the area. The medication is usually an anesthetic mixed with a steroid, which will provide lasting relief to patients suffering tension headaches, migraines, and more.

Benefits from an OCB

This injection gives relief to patients up to several months, and allows them to quickly return to daily actives without reoccurring pain. Repeat treatments may be given up to 3 times in a 6 month period.

When will I see results?

The anesthetic in the medication will alleviate pain for up to 24 hours after the injection- the return of discomfort is normal. Some patients report some soreness around the site for a couple of days. Recipients of this treatment can expect to see longer lasting pain relief about the third day after the procedure, when the steroid begins to interact with the injection area.


If your doctor determines that you could benefit from a block, the area will be sterilized and the injection given while you are sitting or lying down. You will be asked about your symptoms and how you feel before being released. This procedure only takes a few minutes and can be done at your doctor’s office.

Risk Factors

There is a risk of complication with any medical procedure. Take time to discuss treatment options and any questions you may have with your physician, before agreeing with a procedure.