Can I use air conditioning or a fan during confinement?

Yes, with the airflow pointed away from you. This question comes up constantly in hot climates, and it deserves a clear answer, because the strictest reading of the rule and a summer heatwave together are genuinely unsafe.

The key is that the tradition objects to wind, not to a comfortable room.

What does the tradition say?

Avoid draughts. No fan on the body, no air conditioning vent blowing over you, no sitting by an open window, no going out into wind with damp hair. Some households extend this to keeping windows closed entirely and the mother covered head to foot, including a hat and socks.

This is the master rule of confinement, the one most others descend from. Where it was formed, in cooler and unheated homes, “avoid wind” and “stay warm” were the same instruction. In a hot climate they come apart, and that is where the difficulty starts.

Why wind specifically? The reasoning inside the tradition

In TCM, wind is understood as a carrier. It is not harmful in itself so much as it is the vehicle that brings cold and damp into the body. After birth the body is described as open, with pores and joints unusually receptive, so wind reaching the skin is held to let cold lodge in the joints and channels, surfacing later as the aches and headaches gathered under yue zi bing.

Read that way the rule is quite precise. Still, warm air is not the concern. Moving air on the skin is.

What does modern care say?

Comfort and hydration matter, and heat stress is a real hazard. Being wrapped in heavy layers in a hot room raises body temperature and fluid loss, and a new mother who is also breastfeeding is already losing more fluid than usual. Dehydration and heat exhaustion follow, and neither helps recovery.

There is also the baby to consider. Overheating is a recognised risk for newborns, and safe sleep guidance advises keeping a baby’s sleep space at a comfortable temperature rather than a hot one, which is another reason the strictest reading does not travel well into a warm climate.

How families handle it today

The compromise that satisfies both sides is about direction and stillness, not temperature:

1. Set a steady, moderate room temperature. Around 24 to 26 degrees Celsius works for most households. Cool enough to be safe, warm enough that nobody is chilled.
2. Aim the airflow away. Angle air conditioner vents at the ceiling or a wall. If using a fan, point it away from the bed or at a wall to circulate rather than blow.
3. Cool the next room instead. Running the air conditioner in an adjoining room with the door open is a common solution: the temperature drops, the moving air never reaches the mother.
4. Dress in light long sleeves. Breathable natural fibres, long sleeves and trousers, socks on. Joints stay covered, heat still escapes.
5. Keep drinking. Warm water and teas count fully. Fluid needs rise while breastfeeding, and more so in heat.
6. Avoid the sudden change. Moving straight from a hot outdoors into a cold room is what most households object to most, and it is easy to avoid by keeping the indoor setting moderate.

One recorded account in the confinement literature describes exactly this approach: keeping the whole strict month, thermostat held around 21 degrees, hot showers and hair dried immediately, and dressing for the actual climate when leaving the house, including a thermos of hot tea for the car.

If dark urine, dizziness, headache, nausea or a racing heart appear, treat that as overheating: cool down, drink, and get medical advice if it does not settle quickly.

For the reasoning that ties all the warmth rules together, see the introduction to Chinese confinement.