A traditional formula for mouth heat, gum irritation, and bad breath

Clear Stomach Heat (Qing Wei San) supports the body when excess heat rises into the mouth, gums, and face. This type of heat is often linked to rich food, sugar, alcohol, and other dietary excesses. Li Gao first recorded the formula in Lan Shi Mi Cang (Secrets from the Orchid Chamber) in 1336. For centuries, practitioners have chosen it when bad breath, swollen gums, mouth ulcers, and stomach heat become hard to ignore. It remains a trusted option when digestive heat starts to show up in the mouth.

When to use it

In Traditional Chinese Medicine, practitioners choose Clear Stomach Heat when too much heat builds up in the stomach and rises upward. The mouth and gums can then become sore, swollen, or inflamed. Breath may smell strong. The mouth may feel dry. Toothache may also feel worse with heat and better with cold.

Many choose this formula for mouth ulcers, bleeding gums, painful gums, bad breath, toothache, and other signs of stomach heat, such as regurgitation. It suits those who want support when heat and irritation affect the mouth, digestion, and upper stomach area.

Why it stands out

What makes Clear Stomach Heat so useful is its focused approach. It does not act as a general digestive formula. Instead, it targets the kind of heat that rises upward and affects the gums, teeth, mouth, and breath. This makes it a strong choice for natural support when oral discomfort, irritation, and bad breath link back to excess digestive heat.

Research

Research on Clear Stomach Heat has shown encouraging results in halitosis, oral ulcers, periodontitis, and recurrent stomatitis. Studies have reported faster healing, less inflammation, and better gum health, especially when the formula was used alongside standard care. This gives Clear Stomach Heat strong modern relevance and supports its traditional use when heat and irritation affect the mouth, gums, and upper digestive tract.