Geranium essential oil helps balance oily and dry skin, and also   brings about balance of the mind, relieving stress and anxiety. It is said to work on the adrenal cortex, which has a balancing effect on the hormone system. Geranium oil has been used to treat acne, bruises, burns, cuts, dermatitis, eczema, haemorrhoids, ringworm, ulcers, breast engorgement, oedema, poor circulation, sore throat, tonsillitis, PMS, menopausal problems, stress, and neuralgia. Its strong smell chases away mosquitoes. Add a few drops to shampoo to get rid of head lice.