Aromatherapy Functions in Chinese Medicine Increases the Guardian Qi; Dispels Pathogens; Fights Infection: flu and viral infections, sinusitis, toothache, throat infections, chronic laryngitis; fever (cholera), cystitis. Rectifies the Skin: skin problems such as oily skin or spots. Stops Pain: sore and aching muscles, rheumatism, arthritis. Tonifies and Boosts Lung Qi; Transforms Damp: productive coughs, bronchitis, asthma. Expels Worms: roundworms, insect bites.