Normally they would use the 1st way. Husband or relative will take care of fire. Normally “Yoo Fai” will take about 7-15 days after delivery and the mothers will not leave the room in order to maintain balance of body temperature, promote healthy condition and ward off illness.
Now, they way of “YooFai” still be using both method and name “YooFai” but the system is changed by the replaced of a New Theory of Medicine. YooFai has been promoted recently by applied traditional Thai medicine e.g. hot herbal compress, herbal steam bath, lukewarm water showering or hot herbal compress with salt steam.