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Hot flashes are the most common menopausal symptom, affecting 75–80% of women going through natural or surgical menopause. They're characterized by a sudden feeling of intense warmth, typically starting in the chest, face, and neck, often followed by sweating and then chilling. At night, they become night sweats — a drenching sweat that disrupts sleep, which in turn affects mood, cognition, and overall health.
Conventional management includes hormone replacement therapy (HRT/MHT), which is highly effective and underutilized in Canada due to historical concerns now considered outdated by the Society of Obstetricians and Gynaecologists of Canada (SOGC). Non-hormonal pharmaceutical options include SSRIs, gabapentin, and oxybutynin. Acupressure and acupuncture sit in the middle tier — meaningful evidence, modest effect sizes, no side effects, and accessible as a self-care practice.
A 2019 systematic review in Menopause: The Journal of the North American Menopause Society reviewed 14 trials and found that acupuncture reduced hot flash frequency by an average of 36% compared to control, with effects persisting for 3 months post-treatment. Self-applied acupressure trials are fewer but show directionally similar results — a 2016 trial in Evidence-Based Complementary and Alternative Medicine found significant reductions in hot flash frequency and sleep disruption after 4 weeks of daily acupressure in menopausal women.
This page focuses specifically on hot flash and night sweat technique. For the broader context of menopause and perimenopause, see the menopause guide and the perimenopause guide.
TCM Framework: Kidney Yin Deficiency
In TCM, hot flashes map primarily to Kidney Yin deficiency — the "cooling and nourishing" aspect of the Kidney that declines with age, and particularly rapidly during the estrogen withdrawal of menopause. When Kidney Yin is insufficient, heat rises upward (mimicking the clinical experience of heat flushing the face and chest), and the body cannot generate adequate cooling moisture (hence night sweats that deplete fluids further).
The treatment principle is to nourish Kidney Yin and clear deficiency heat. The points below do exactly this from their TCM function — and the nerve-rich areas they target do appear to modulate the thermoregulatory signalling in the hypothalamus that drives vasomotor symptoms.
The Key Points for Hot Flashes
SP6 / Sanyinjiao — Three Yin Intersection
Location: Four finger-widths above the inner ankle bone, just behind the shinbone.
What it does: SP6 is the most important point for menopausal symptoms across TCM traditions. It crosses the Spleen, Kidney, and Liver meridians and directly nourishes Kidney Yin — the deficiency driving hot flashes. Most hot flash acupuncture protocols include SP6 as a primary point. Firm pressure, 60–90 seconds per side. Apply before bed as part of the nighttime protocol below. Avoid during pregnancy.
KD7 / Fuliu — Returning Current
Location: On the inner leg, two finger-widths directly above KD3 (which is in the hollow behind the inner ankle bone). KD7 is just slightly behind the Achilles tendon on the inner side.
What it does: KD7 is the metal point of the Kidney meridian and the specific point for regulating sweating — it's used both for excessive sweating (like night sweats) and for insufficient sweating, demonstrating its regulatory rather than one-directional function. KD7 is particularly important for night sweats specifically. Firm pressure for 60 seconds per side. Combined with SP6, this pair addresses both the underlying Yin deficiency (SP6) and the sweating symptom (KD7).
CV6 / Qihai — Sea of Qi
Location: On the midline of the lower abdomen, 1.5 cun (two finger-widths) below the navel.
What it does: CV6 nourishes the foundational Qi of the body, supporting the Kidney-adrenal axis. It helps stabilize the wild fluctuations in heat perception during hot flashes. Gentle sustained pressure here for 90 seconds — apply before bed with slow breathing. The lower abdomen is where the Kidney energy (the "Gate of Life" axis) is rooted, and stabilizing this area supports thermoregulatory balance.
LI4 / Hegu — Union Valley
Location: In the webbing between thumb and index finger.
What it does: LI4 is used for hot flashes in a slightly different way — it's a cooling and dispersing point that helps vent the excess heat causing the flash. Think of it as addressing the symptom in the moment, while SP6 and KD7 address the underlying cause. During an active hot flash, firm pressure on LI4 for 30–60 seconds can shorten the duration. Avoid during pregnancy.
KD3 / Taixi — Great Mountain Stream
Location: In the hollow between the inner ankle bone and the Achilles tendon.
What it does: KD3 is the source point of the Kidney meridian — the access point to the essential Kidney energy. For Kidney Yin deficiency, KD3 directly nourishes the root. It's gentler than KD7 and is the baseline "maintenance" point for overall Kidney Yin support. Use daily for long-term benefit. 60 seconds per side.
PC6 / Neiguan — Inner Gate
Location: Three finger-widths above the inner wrist crease, between the two tendons.
What it does: PC6 addresses the Heart-heat aspect of hot flashes — the heart palpitations, anxiety, and emotional heat that often accompany vasomotor symptoms. If your hot flashes come with a racing heart, anxiety, or insomnia, PC6 should be part of your protocol. 60 seconds per side.
The Evening Protocol for Night Sweats
Performed 30–45 minutes before bed:
- KD3 — 60 seconds each side (slow, gentle pressure)
- SP6 — 90 seconds each side
- KD7 — 60 seconds each side
- CV6 — 90 seconds, lying flat, slow breathing
- PC6 — 60 seconds each side, particularly if sleep anxiety is a factor
Total: approximately 12–15 minutes. Do this lying down in a cool room (Canadian bedrooms should be kept at 16–19°C for optimal thermoregulation). Cooling sheets, moisture-wicking sleepwear, and a bedroom fan work synergistically with acupressure for night sweats.
During a Hot Flash — The Acute Response
When a flash starts:
- Press LI4 firmly (both hands if accessible) — this disperses the rising heat
- Take 4 slow, deep diaphragmatic breaths — proven to reduce hot flash duration in clinical trials
- Add KD3 if you can reach your ankles (seated with feet up is easiest)
The combination of acupressure + slow breathing is more effective than either alone for acute hot flash interruption.
Lifestyle Factors That Compound Hot Flashes in Canada
- Temperature swings: Canadian winters with overheated indoor spaces are a known hot flash trigger. Keep indoor temperature consistent rather than fluctuating between cold outdoor air and hot indoor environments.
- Caffeine and alcohol: Both dilate blood vessels and lower the hot flash threshold. Even one glass of wine can double hot flash frequency for the night.
- Stress: Cortisol directly destabilizes thermoregulatory set-points. The stress protocol in the stress relief guide helps here.
- Smoking: Increases hot flash severity significantly — another reason to quit, beyond the obvious.
Combining with Medical Treatment
Acupressure and HRT/MHT are entirely compatible. If you're already on hormone therapy and still experiencing breakthrough hot flashes, the protocol above can reduce residual symptoms. If you're unable or unwilling to use hormone therapy, acupressure combined with lifestyle modification can reduce hot flash frequency meaningfully — though not to the same degree as effective HRT.
For Canadian women considering hormone therapy, discuss with your GP or a menopause specialist. The SOGC's updated 2023 position statement strongly supports MHT for healthy women under 60 within 10 years of menopause onset.
This guide addresses self-care techniques for menopausal hot flashes. It is not medical advice. Severe or sudden hot flashes in women who haven't reached menopause should be evaluated medically — they can occasionally indicate thyroid conditions, carcinoid syndrome, or medication effects. Always discuss persistent menopausal symptoms with your healthcare provider.