It may be beneficial for the digestive system and has been reported to help regenerate connective tissue. it is a vasodilator, anti-inflammatory, sedative and supportive. Use for diffuser also. Lemon grass oil (tea oils for gastric) lemon grass oil is used for Rheumatism,Cramps and Gastritis. It is used as a mosquito repellant and in some soaps for scenting.a drop in a hot black tea gives a lemon flavour.two to five drops lemon grass oil when applied on the painful region twice or thrice relieves the pain.