Bird's nest is believed to nourish yin and moisten the lungs, dissolve phlegm and stop coughs, benefit the qi and tonify the middle, remove dryness and moisturize the skin, nourish the stomach and strengthen the spleen because of traditional Chinese medicine theories, and the production of bird's nests is not high, which leads to a high price.
It is said that there is a one-stop service in Malaysia that specializes in supplying bird's nests to Chinese people, combined with tourism and shopping, and the popularity is still very strong.