Aromatherapy is a powerful practice that has been in use for decades for a range of different purposes, so you might also want to start researching about it and get to know exactly how you too could benefit from it.
There are countless health benefits associated with aromatherapy so if there is a health condition that you are suffering from and traditional medicine does not seem to be effective at either helping you heal it or at least helping you to manage it effectively, then you may want to research what type of essential oils have been proven to be effective for it so that you could try aromatherapy out.
If you visit various massage parlours, you will find aromatherapy to be in common use as there are people who are benefiting from it on a day-to-day basis. You will have to be specific with what you are trying to achieve as the type of essential oil that you use for aromatherapy would make a huge difference in what you are going to achieve as far as results are concerned.
You may also want to identify or find stores that stock essential oils for aromatherapy as this way you will be able to obtain genuine brands of essential oils designed for a particular purpose for use in aromatherapy.