What has happened
You slept in one position, or spent yesterday with your head turned to a second screen, and a small joint in the neck got irritated. The muscles on that side, mainly levator scapulae and the upper trapezius, clamped down to protect it. That clamp is the stiffness.
Turning toward the sore side hurts, looking over your shoulder is out, and reversing a car or checking for a bus on Kingsway is awkward. It feels alarming and it is usually minor.
The usual timeline
- Days 1 to 2. The worst of it. Rotation may be down to half of normal.
- Days 3 to 5. Range comes back in steps, mornings stiffest.
- Days 7 to 10. Back to normal for most people.
- Still stuck at two weeks. Get it assessed.
What to do in the first three days
Movement inside the comfortable range is the treatment. Holding the neck rigid keeps the spasm going.
- Every hour: turn your head slowly to each side, five times, stopping at the first point of pain.
- Heat for 15 minutes, morning and evening. A hot shower aimed at the neck counts.
- Shoulder rolls and shrugs, ten of each, three times a day.
- At your desk: centre the main screen and move the second one in front of you for the week.
- Keep training. Legs, cardio and anything that does not load the neck. Leave heavy overhead pressing and barbell shrugs until rotation is back.
Where acupuncture helps
In an acute stiff neck, needles are used to switch off the guarding. Points go into the tight muscle at the top of the shoulder and the side of the neck, and often into the hand or forearm on the same side. While the needles are in, you turn your head gently. Most people turn noticeably further by the end of the session.
That gain has a practical use. It lets you move normally for the rest of the day, and normal movement is what clears the episode. One or two sessions in the first week is the usual dose.
For a neck that has been stiff and sore for three months or more, the evidence is for a course. In a UK trial of 517 people with chronic neck pain, those given 12 acupuncture sessions reported 32 per cent less pain and disability a year later, against 23 per cent with usual care alone. A Cochrane review of the wider trials found acupuncture beat sham needling for neck pain at the end of treatment and at short-term follow-up.
Needles free the neck for a few days. What keeps it free is strength in the muscles that hold your head up for nine hours: chin tucks, rows and loaded carries, twice a week. Ask for those before you leave the first session. Details of how sessions run are on the acupuncture page.
When to book, and when to wait
Use the calendar. Most of these are short: in UK clinic records we analysed for adults under 40 with neck pain, about two in three needed two appointments or fewer, because an acute spasm clears quickly once the neck is moving again.
- Day 1 or 2, and you can turn at least halfway: follow the three-day plan. Most of these clear without treatment.
- Day 1 or 2, and you have a flight, a presentation or a long drive this week: book. One session buys range when you need it.
- Day 4 with no improvement: book.
- Third episode this year: book an assessment as well as treatment. Something in your week keeps setting it off.
- Stiff for three months or more: plan a course of 8 to 12 sessions with a review at session four.
Stop and get seen if
- A stiff neck with fever, a severe headache or a dislike of bright light. Call 999 or go to A&E.
- Neck pain after a fall, a collision or a blow to the head.
- Numbness, pins and needles or weakness in an arm or hand.
- Dizziness, double vision, slurred speech or trouble swallowing.
- Pain that is constant, worse at night and unchanged by position.
Straight answers
How quickly does acupuncture work on a stiff neck?
In an acute episode, most people turn further by the end of the first session and hold that gain into the next day. A second session three to four days later is common if range is still limited.
Should I use heat or ice?
Heat. A stiff neck is muscle guarding, and warmth helps it let go. Fifteen minutes, twice a day.
Is it my pillow?
Sometimes. A pillow that keeps your neck level with your spine when you lie on your side is the target. If stiff mornings started with a new pillow or a hotel stay, that is your answer. If they follow long laptop days, look at the desk first.