By skyforbes 
Holy basil (tulsi), in particular, has been used for thousands of years to address a wide range of health conditions, including bronchitis, rheumatism, epilepsy, asthma, hiccups, coughing, skin and blood diseases, parasitic infections, neuralgia, headaches, wounds, inflammation, and oral pain. (7)
The herb contains eugenol, a chemical compound that long has been used in hopes of treating toothaches, although the U.S. Food and Drug Administration (FDA) states there isn’t enough evidence to say eugenol is effective for treating toothache pain. (12)
There’s plenty of optimism about holy basil’s medicinal properties, but the findings are preliminary. A 2017 review of 24 human studies concluded that tulsi is “a safe herbal intervention that may assist in normalizing glucose, blood pressure, and lipid profiles, and dealing with psychological and immunological stress.” But the authors state further research, including large-scale and long-term clinical trials, is needed to explore how tulsi works, dosage levels, and who can benefit. (7)