Lemon (Citrus Limonum) is used for sore throat, nervous conditions, blood pressure, digestive problems, gallstones, debility, fever, abnormal apprehension fearfulness, as a tonic, astringent, and antiseptic. Also useful as a laxative, for diarrhea, tones the liver, used for Problem due to narrowing of air passage, bronchitis, catarrh, throat Problem created due to harmful organisms, High blood pressure, tones the heart, lowers blood sugar, Enhances arthritis, acne, broken capillaries, varicose veins, clears the head and Enhances combat Despair and combats fever.