1. antipyretic and expectorant: effective components such as the volatile oil of onion can stimulate the sweat glands of the body and achieve the effect of sweating and heat dissipation; Scallion oil stimulates the upper respiratory tract, making it easy to cough up phlegm.

2. Promote digestion and absorption: Onion also stimulates the secretion of digestive juice, which can strengthen the spleen and stimulate appetite.

3. Antibacterial and antiviral: Allicin contained in onion has obvious effect of resisting bacteria and viruses, especially for dysentery bacilli and skin fungi.

4. Anti-cancer and anti-cancer: Pectin contained in shallots can obviously reduce the occurrence of colon cancer and has anti-cancer effect. Allicin in shallots can also inhibit the growth of cancer cells.