Myrtle oil can be used to eliminate unpleasant personal odour. A 2019 study found that the oil has strong antifungal properties, which can allow it to attack the source of odours and inhibit their growth. The aromatic, deodorising properties of the oil can also help to mask existing odours. Myrtle essential oil can be diluted and dabbed on odorous parts of the body, such as under the armpits – just be careful to avoid any particularly sensitive areas.