Hot flashes kahit naka-aircon? Here's what's happening

That is how one Filipina on Reddit described it, and she was right. Filipinas on Reddit report feeling "hot all the damn time", even with the aircon on full blast, and daughters describe mothers saying "sobrang init ... kahit naka aircon naman".

In Philippine weather, everyone is hot. A hot flash is different: it starts suddenly, often in the chest or face, spreads upward, and fades within minutes. You may flush red, sweat, feel your heart pound, then feel chilled as the sweat dries. At night they are called night sweats.

Doctors call hot flashes and night sweats vasomotor symptoms. They can start in perimenopause, while you still have periods, and last for years after your last period.

Your brain has a thermostat in the hypothalamus. It keeps your core temperature inside a comfortable band. Estrogen helps keep that band wide.

As estrogen drops and swings in perimenopause, the band narrows. A tiny rise in core temperature, one you would never have noticed at 35, now looks like overheating to your brain. It responds by dumping heat fast: blood vessels in the skin open (the flush), you sweat, and your heart speeds up.

That is why the room temperature is not the main cause. The trigger is inside. Heat, coffee, alcohol or stress can tip you over, but avoiding them does not switch the process off. Newer research also points to a group of brain cells in the temperature centre (KNDy neurons). The newer non-hormonal drug fezolinetant works by blocking a signal (neurokinin B) on these cells, according to its US label.

How long do they last? For many women, years rather than months. In the US SWAN study, women with frequent hot flashes or night sweats had them for a median of 7.4 years in total, and 4.5 years after their last period (Avis et al., JAMA Intern Med 2015).

Hot flashes in your 40s or 50s with changing periods are very likely menopausal. Still, a few other things cause heat, sweating or flushing, and some are worth ruling out:

• Thyroid problems. An overactive thyroid causes heat intolerance, sweating, weight loss and a fast heartbeat. A TSH test costs ₱490 per test (Exact Check), with FT4 at ₱470 per test (Exact Check). Other labs charge ₱600 to ₱1,100 per test (Hi-Precision, Healthway (estimates)). See perimenopause or thyroid?.
• Anemia. Heavy perimenopause periods can cause anemia, which brings tiredness, a racing heart and feeling unwell.
• Anxiety and depression. Panic attacks can feel like a flash: heat, pounding heart, sweating. Low mood can also make flashes feel worse. See mood and anxiety.
• Medicines. Some antidepressants, diabetes medicines, opioids and blood pressure tablets can cause flushing or sweating. Bring your medicine list to your doctor.
• Infection or fever. A real fever does not come and go in minutes.

If you are unsure, the symptom checker lists what to bring to your doctor. A blood FSH test is usually not needed to diagnose menopause after 45 (NICE NG23).

Here is what the evidence says, using The Menopause Society 2022 hormone therapy and 2023 nonhormone therapy position statements and the NICE NG23 guideline (updated 2024). All medicines below need a prescription in the Philippines.

Hormone therapy (HRT). Strong evidence. The Menopause Society calls hormone therapy "the most effective treatment for vasomotor symptoms". For most healthy women under 60 or within 10 years of menopause, the benefits outweigh the risks. If you still have a uterus, you need estrogen plus a progestogen. Options sold in the PH include:

• Estradiol gel (Oestrogel), a transdermal option: ₱1,185.50 per 80 g pump pack (Watsons)
• Micronized progesterone (Utrogestan): ₱85.75 per capsule (Watsons); or (Heragest): ₱76.50 per capsule (Watsons)
• Dydrogesterone (Duphaston): ₱92.25 per tablet (Watsons)
• Tibolone (Amena): ₱1,442.75 per pack (pack size not stated) (Watsons)
• Conjugated estrogens 0.625 mg: ₱47.25 per tablet (Watsons)
• Estradiol patches: Not available in PH retail as of October 2026

See HRT for menopause for who it suits, and costs for monthly totals using example regimens. Worried about cancer? Read HRT and cancer.

SSRIs and SNRIs, such as paroxetine. Strong evidence. Some antidepressants at low doses reduce hot flashes, even if you are not depressed. Paroxetine (Seroxat) 20 mg: ₱68.75 per tablet (Watsons). Paroxetine can make tamoxifen less effective, and its UK label says to avoid the combination whenever possible, so tell your doctor if you take tamoxifen.

Gabapentin. Strong evidence. A nerve medicine that reduces flashes, and can help if they are worse at night because it causes drowsiness. Gabapentin (Reinin) 300 mg: ₱42 per capsule (Watsons).

Fezolinetant. Strong evidence, but not in the PH. A newer non-hormonal tablet that targets the brain's temperature centre. Not available in PH retail as of October 2026.

Clinical hypnosis. Strong evidence. Guided hypnosis sessions with a trained therapist. Hard to find locally.

Cognitive behavioural therapy (CBT). Some evidence. CBT does not always reduce the number of flashes, but it makes them less bothersome and helps sleep. NICE 2024 recommends offering it.

Oxybutynin. Some evidence. A bladder medicine that also reduces sweating. Doctors use it with caution in older women because of side effects on memory.

Weight loss. Limited evidence. If you are overweight, losing weight may reduce flashes, and it helps your heart and joints anyway.

Stellate ganglion block. Limited evidence. A specialist nerve injection in the neck. Rarely used.

Not recommended for hot flashes by the 2023 statement: herbal remedies (including black cohosh and evening primrose), soy foods and soy extracts, paced breathing, cooling techniques, avoiding triggers, yoga, exercise, acupuncture, clonidine and pregabalin. Exercise is still great for bones, mood and sleep; it just is not a proven hot flash treatment.

Supplements. Femarelle (₱2,000 per box of 56 (Watsons)) and evening primrose oil (₱36.50 per softgel (Watsons)) are popular in the PH. They carry "No approved therapeutic claims", and the evidence is weak. Read our honest supplement ratings before spending.

Prices checked October 2026.

More options without hormones are on non-hormonal treatments.

Electric fans, cold water, cotton or linen clothes, a handkerchief, layers you can remove and a cooler bedroom all make a flash easier to sit through. Use them. Just know the 2023 Menopause Society statement found that cooling and trigger avoidance do not reduce hot flashes in studies. Three fans and still miserable? That is not you being "maarte". It is a sign to talk to a doctor.

Tracking helps that conversation. The hot flash counter and symptom diary keep your log on your own phone.

Many Filipinas say their OB brushed off their flashes or refused HRT. PGH OB-GYN faculty at the 2025 UP Manila symposium said you can start HRT as soon as symptoms show, ideally within five years of diagnosis. If your doctor says no without explaining why, it is fair to ask for the reason or to get a second opinion. Our talk to your doctor guide has a Taglish script, and find a doctor lists menopause-literate OB-GYNs and teleconsults (₱699 per 15 min (Doctor Anywhere, Medifi)).

Hot flashes themselves are not dangerous. See a doctor soon if you also have:

• Chest pain, fainting or a very fast heartbeat that will not settle. Go to the ER.
• Bleeding after 12 months without a period. Always needs a check. See bleeding after menopause.
• Fever, weight loss without trying, or drenching sweats with feeling ill. These are not typical hot flashes.
• A new breast lump, leg swelling or a sudden severe headache.
• Low mood with thoughts of self-harm. Reach out now. See mood and anxiety for crisis lines.