1. Relieve allergies: rich in antioxidants and anti-inflammatory compounds, soak in water to relieve various allergy symptoms.

2. Relieve colds and flu: contains menthol, which can break down phlegm and mucus and reduce sore throat symptoms.

3. Antibacterial and anti-inflammatory: Containing catecholic acid, which has certain antibacterial and anti-inflammatory effects.

4. Stress relief: it has a relieving effect on symptoms such as irritability and insomnia, improves bad mood, boosts the spirit and helps to fall asleep.

Peppermint leaves in water has the following effects and functions:

1. Improve oral odor: peppermint leaves have a cool taste and smell, which can help improve the oral odor.

2. Relieve bloating and indigestion: peppermint leaves contain active ingredients such as menthol, which can stimulate gastrointestinal motility and relieve gastrointestinal problems such as bloating and indigestion.

3. Relieve headache and eyestrain: menthol and other ingredients in peppermint leaves can improve blood circulation and relieve problems such as headache and eyestrain.

4. Improve sleep quality: mint leaves in water has a sedative effect, which can help relax the body and mind and improve sleep quality.

5. Improve skin problems: Menthol and other components in peppermint leaves have antibacterial and anti-inflammatory properties, which can help improve skin problems such as acne and boils.