During World War I, lavender, with it's proven anti-bacterial qualities and strong antiseptic and analgesic properties  was used to help to fight infection and hasten the healing process. 

Lavender:

•  in a mixture with pine, thyme, mint, rosemary, clove, and cinnamon oils helps with "staph infections" (Staphyloccus bacteria).

• with anti-inflammatory and  anti-fungal uses include first aid remedies for minor cuts, bites, burns, and sunburn, skin wounds,  scars, to help stop the stinging- reduce the swelling and itching associated with insect bites.
•  Used to combat  skin rashes like acne or seborrhea, eczema  and to  help heal irritated skin is also a prophylactic agent and immuno-stimulant, lavender is useful as a preventative agent protecting against colds, flu, etc 
• Soothing Remedy/Pain Relief: an analgesic, muscle de-contractant and anti-spasmodic agent  can be used in conditions that involve spasms or pain- Rheumatoid arthritis, rheumatism, arthritis, soothes muscle aches and pains, low back pain,  cramps, PMS, toothaches, earache, period pains, headaches , indigestion and other  stomach complaints, flatulence,  Roehmheld syndrome, meteorism. 

• Microbial activity on gums, airborne molds can be treated with constituents of the oils. 

•  Ancient Greeks used lavender to fight  insanity. Lavender's soothing "tonic" qualities  has a regulating effect on the nervous system with its balancing and harmonizing nature. Being an extreme adaptogen, it can have a restorative effect in cases of listlessness or weakness, to increase mental capacity and diminish fatigue and depression along with other conditions of the nervous system but conversely has a calming effect on hyperactivity, anxiety, nervousness,  agitated behavior  acting as a sedative for mood disturbances.  Harvard Medical school reports found it helps relieve anxiety.
• One of the best stress relievers known it  is comparable to hypnotics or tranquilizers. difficulties in sleeping such as restlessness, insomnia,  and to  facilitate rest even in  Alzheimer's dementia.
• Helps alleviate motion sickness (travel nausea) and fights fatigue from jet-lag with three to four drops of Lavender oil massaged onto the ankles.  Inhaling lavender oil is as effective as some commonly prescribed sleep medications. A few drops of lavender oil on your pillow and rub a drop on each temple.   Within 5 minutes after application, lavender is in the bloodstream. In nursing homes lavender or pinning a cloth with the oil on it to the  pillow
• Treatment of functional circulatory disorders.
• Alopecia, hair loss-  Lavender, thyme, rosemary,  and cedarwood oils massaged into the scalp daily. 
Relieve perineal discomfort after childbirth with lavender as a bath additive 
• Skin bruising- reduces inflammation helping bruises to heal in less time by lightly rubbing a drop or two on the injured area. Massage a drop or two lavender oil into the affected area. 
• In cancer chemo-prevention and therapy, research  has focused on cancers of the breast, pancreas and intestines. Perillyl alcohol, found in lavender in addition to cherries, mint and celery seeds, has been shown to exert anticancer effects.  In mice these compounds reduced the size of breast cancer tumors. In some hospitals and clinics in the UK cancer patients, receive lavender aroma-theraphy.
• To cover disagreeable odors in ointments and other compounds. 

CAUTION: Always check prior to using lavender, if you are allergic to it. If you are unsure consult a doctor first.