Citronella oil uses

Citronella oil is made by steam distillation of certain species of grasses in the Cymbopogon grouping of plants. Ceylon or Lenabatu citronella oil is produced from Cymbopogon nardus, and Java or Maha Pengiri citronella oil is produced from Cymbopogon winterianus. Lemongrass (Cymbopogon citratus) also belongs to this grouping of plants, but it is not used to make citronella oil.
Citronella oil is used to expel worms or other parasites from the intestines. It is also used to control muscle spasms, increase appetite, and increase urine production (as a diuretic) to relieve fluid retention.
Some people apply citronella oil directly to the skin to keep mosquitoes and other insects away.
In foods and beverages, citronella oil is used as a flavoring.