Hot flashes are the most frequent symptom of menopause and perimenopause. Hot flashes happen in more than two-thirds of North American women during perimenopause and almost all women with induced menopause or premature menopause.
A hot flash, sometimes called a hot flush, is a quick feeling of heat and sometimes a red, flushed face and sweating. The exact cause of hot flashes is not known, but may be related to changes in circulation.
Hot flashes happen when the blood vessels near the skin's surface dilate to cool. A woman may also sweat to cool down her body. And some women have a rapid heart rate or chills.
Hot flashes with sweating can also happen at night. These are called night sweats and may make it harder to sleep.
A hot flush is a hot flash plus redness in the face and neck.
How Long Will I Have Hot Flashes?
Hot flashes vary among women going through menopause. Some women have hot flashes for a very short time during menopause. Other women may have hot flashes for life. Generally, hot flashes are less severe as time passes.
Can I Prevent Hot Flashes?
You probably can't avoid hot flashes during menopause, but there are things that may bring them on more often or cause them to be more severe. To prevent hot flashes, avoid these triggers:
Other things you can do to keep hot flashes at bay include:
Stay cool. Keep your bedroom cool at night. Use fans during the day. Wear light layers of clothes with natural fibers such as cotton.
Try deep, slow abdominal breathing (six to eight breaths per minute). Practice deep breathing for 15 minutes in the morning, 15 minutes in the evening and at the onset of hot flashes.
Exercise daily. Walking, swimming, dancing, and bicycling are all good choices.
Try chill pillows. Cooler pillows to lay your head on at night might be helpful.
Talk to your doctor about taking hormone replacement therapy, or HRT, for a short time -- less than 5 years. This treatment prevents hot flashes in many women. Plus, it can help other symptoms of menopause, including vaginal dryness and mood disorders. Keep in mind that when you stop taking HRT, the hot flashes may come back. Short-term HRT carries some risks, including blood clots and gallbladder inflammation. If HRT is not right for you, there are other treatments that may offer relief. It is important to clear any new drugs (including over-the-counter) or supplements with your doctor before taking them.
Nonprescription treatments include:
Vitamin B complex
Prescription treatments include:
Low-dose depression drugs like fluoxetine (Prozac), paroxetine (Paxil), or venlafaxine (Effexor)
Clonidine, a blood pressure medication
Gabapentin, an antiseizure drug
Brisdelle, a paroxetine formula specifically for hot flashes
Duavee, a conjugated estrogens/bazedoxifene formula designed to treat hot flashes