Solanum nigrum has the effects of heat-clearing and detoxification, cough relief and lung moisturizing, and blood pressure stabilization, but patients should use it reasonably according to their physical condition.

1. Heat-clearing and detoxification: Solanum nigrum is slightly cold in nature and can effectively clear heat and detoxify, which can alleviate symptoms such as sore throat and oral ulcers caused by internal heat.

2. Cough relief and lung moisturizing: Solanum nigrum can effectively alleviate the proliferation of various pathogens in the lungs, thereby playing a cough relief and lung moisturizing role.

3. Stabilize blood pressure: Solanum nigrum contains ingredients that can lower blood pressure, which can help stabilize blood pressure and has a good effect in alleviating the symptoms of patients with unstable blood pressure.

In addition to the aforementioned effects, it also has anti-inflammatory and antibacterial effects. However, solanine contained in solanum nigrum can be harmful to the human body, and it must be scalded with boiling water before use. It is best not to use it excessively to avoid symptoms such as aversion to cold.