Lime oil, when used in an oil burner, stimulates a tired mind and helps ease anxiety, apathy, and depression. It is useful to reduce fevers associated with colds, sore throats, and flu. It increases immunity while easing coughs, bronchitis, sinusitis, and asthma. It is said to be helpful for arthritis, rheumatism and poor circulation, as well as for obesity and cellulite. This oil is good for the skin; it reduces oiliness and acne, helps with herpes, insect bites and cuts. However, the oil that is obtained by cold expression (as opposed to steam distillation) can cause photosensitivity and irritate the skin.