Has anti-inflammatory, antiallergic, and bronchodilator properties. Guaco is used primarily in traditional medicine for upper respiratory problems like asthma, bronchitis, colds, and flu. It is used as an anti-inflammatory agent for rheumatoid arthritis and inflammation in the digestive tract and as an antibacterial for Candida and yeast infections. Guaco, contains around 10 percent coumarin, which has blood-thinning properties.
