Here are some suggestions:
Bath
Put 3- 7 drops of Citronella oil in a warm bath to reduce swelling and pain. Fill the tub first with water then add the oil.
Diffuser
For people who can’t sleep. Try diffusing 2-3 drops Citronella oil in your diffuser.
Insect Repellent
You can combine several drops with coconut oil (carrier oil) and spread it on your body like lotion, or add some to a spray bottle with water and cover your skin, hair and clothes. Applying pure citronella oil directly to the body is considered more effective for fighting bugs than citronella candles are
Muscle & Joints
Combine (two to three) drops with a carrier oil like coconut oil and massage it into swollen joints, tissue and muscles.
For other ideas how to use essential oils check out our ESSENTIAL OIL-BOOK