Geranium essential oil has been in use for centuries as an herbal remedy for the symptoms of menstruation and menopause. Geraniums contain terpines, which are a natural substance that bugs do not like, so it is also used as a natural insect repellent. Reports of geranium side effects are very rare and not well documented. Most experts caution against using geranium oil if you are pregnant or nursing, when it is always best to be cautious.
Geranium oil is considered to be non-irritating, but, according to the experts at aworldofaromatherapy.com and naturalhealingguide.com, people with very sensitive skin have reported some problems with pure geranium oil. Do a small test patch before using it on a larger area.
Geranium is a natural diuretic. That means that it helps the body to eliminate excess water. If you are taking geranium oil internally, do not combine it with any other natural diuretic such as green tea, and make sure that you drink a minimum of 32 ounces of water per day.
Geranium oil is believed to soothe the stomach, bowels and intestines, helping to stop cramping. During pregnancy, the uterus naturally contracts and expands as it grows to accommodate the fetus. While there is no scientific data to support the idea that the antispasmodic effects of geranium oil could pose a serious risk during pregnancy, it is always best to be safe and simply avoid using geranium oil while you are pregnant.