safe? well i too would have thought so, then i read this so maybe not. gleaned from 'inteli health'
Potential Dangers
Allergies
There are several reports of allergic skin reactions occurring in people using eucalyptus oil products on their skin. Laboratory tests have shown that people with asthma or other allergies may be more likely to have a reaction to eucalyptus. An herbal survey found that 12 percent of asthmatic patients use eucalyptus. Ironically, eucalyptus may cause allergic reactions and may exacerbate asthma. It has been reported that rhinoconjunctivitis and vocal cord dysfunction worsen within minutes of an exposure to eucalyptus.
Side Effects
Eucalyptus should not be taken by mouth unless under the careful supervision of a licensed health care professional. There have been numerous cases of toxicity with oral use, including vomiting, stomach pains, seizures, abnormal heart rhythms, bleeding, coma and death.
In animals, eucalyptus oil has been shown to lower blood sugar levels. It is not clear if these effects occur in humans.
When used on the skin, rashes and burning have been reported.
When used in baths or as aromatherapy, prolonged use has caused difficulty breathing, drowsiness and dizziness. Skin irritation has also been reported.
A strain of bacteria found on eucalyptus may cause infection. Worsening of asthma and rhinoconjunctivitis has been reported.
Cardiovascular collapse and multi-organ failure have been reported following a massive ingestion of mouthwash containing phenolic compounds (eucalyptol, menthol, thymol).
Pregnancy And Breast-Feeding
All forms of eucalyptus oil should be avoided by pregnant or breast-feeding women because of its known toxicity. It is not clear if eucalyptus oil is passed to babies through breast milk, but there have been cases of infant deaths from taking eucalyptus oil by mouth.
Interactions
Interactions with drugs, supplements and other herbs have not been thoroughly studied. The interactions listed below have been reported in scientific publications. If you are taking prescription drugs, speak with your health care provider or pharmacist before using herbs or dietary supplements.
Interactions With Drugs
Eucalyptus oil taken by mouth, applied to the skin or used as aromatherapy may increase the amount of drowsiness caused by some drugs. Examples include benzodiazepines, such as lorazepam (Ativan); barbiturates, such as phenobarbital; narcotics, such as codeine; and alcohol. Caution is advised while driving or operating machinery. There is evidence that eucalyptus may interfere with the way the liver breaks down certain drugs. As a result, eucalyptus may cause the levels of these drugs in the body to be too high, leading to serious side effects.
In animals, eucalyptus oil has been shown to lower blood sugar levels. Caution is advised if you are also taking drugs that may lower blood sugar levels. Patients taking oral drugs for diabetes or using insulin should be monitored closely by their health care provider while taking eucalyptus oil. Dosing adjustments may be necessary. Use of aromatherapy for long periods of time may also cause this reaction. The drug 5-fluorouracil may be more absorbed through the skin when applied with eucalyptus oil. If you are taking 5-fluorouracil for a skin condition, speak with your health care provider or pharmacist before you also use eucalyptus oil.
Interactions With Herbs And Dietary Supplements
Eucalyptus oil taken by mouth, applied to the skin or used as aromatherapy may increase the amount of drowsiness caused by some herbs or supplements, such as valerian. Caution is advised while driving or operating heavy machinery. Eucalyptus oil may lower blood sugar levels. Oral use or use as aromatherapy for long periods of time should be avoided in people taking other agents that lower blood sugar levels, such as bitter melon (Momordica charantia). In theory, eucalyptus oil may increase the blood levels of herbs broken down by the liver, such as chasteberry (Vitex agnus-castus). Eucalyptus oil may increase the effects of plants that contain chemicals called pyrrolizidine alkaloids, such as comfrey (Symphytum officinale).
I'll be back to get some of it but there's piles of wood lying everywhere but it's a crying shame the rest is being dumped. If I only had a vehicle capable of shifting it all, and a fireplace to burn it in 
