Contra-indications of the smell therapy

As every event in the world, the smell therapy has both the advantages and disadvantages. Of course, if you are using the essences in a correct way, there is nothing to be afraid about, but at the same time it is worthy speaking about some disadvantages and cases of the essences using.
The single contra-indication which concerns absolutely all the essence is individual intolerance. If you suffer of short wind, asthma, complicated breath, pulse increase, headache, dizziness, noise in the ears, allergy, skin itch and reddening, be careful while you are planning to improve your health with the help of the essences. A quite contrary situation could happen!
So, before using essence, check how you endure it. Put some drops on a plate once per day, repeat the process on the second day and check how your organism is acting like. If you feel some of the symptoms above, it is better to stop the essences treatment and choose something else from a wide range of the health improvement methods. Perhaps, you just do not stand this essence, so, replace it with another one and check again. After this, if everything is ok, it is high time to start the disinfection and freshening of the rooms. If you are inclined to allergy and you know about it, ask your doctor before using the essences!
Such scent as basil, carnation, geranium, cedar, lavender, laurels, juniper, wormwood, rose, rosemary are not recommended to the pregnant women as these smells cause a undesirable process in the organism.
As for saving, it is better to keep the essences in the glass vessels at temperature not below zero degrees and not above thirty degrees.
There is a general rule. The aromatherapy will not be effective in a dusty, old, dirty, smoky place... Put things in order, let in sunlight and fresh air, only then aromas of the essences become really curative.