The Germany Commission E has approved the use of Thyme to treat cough and Bronchitis. Thymol and Carvacrol have been shown to have a wide range of effects against bacteria involved in upper respiratory tract infections. It is believed that these active ingredients add antibacterial activity by creating a complex with bacterial membrane proteins. A synergistic effect is also noted for the combination of Thymol and Creatinine. Also, the Germany Commission E has approved the use of Hollyhock for treating oral and throat mucus arthritis with dry cough. In a clinical trial, 157 patients with acute cough received this syrup (Iranian thyme and Hollyhock extract) or Dextromethorphan syrup. Based on the results, after 96 hours, 50% of patients who used this syrup were fully recovered and in the Dextromethorphan group, this number was 49.3%. Due to this product is herbal, it can be used without side effects compared to the Dextromethorphan product.