Which of the following is NOT a method of application for essential oils in aromatherapy?

The method of oral ingestion without prescription is not a commonly accepted method of application for essential oils in aromatherapy. While essential oils can have therapeutic properties, they are highly concentrated substances that can cause adverse reactions if not used correctly. Ingesting them without proper guidance from a qualified professional poses significant risks, including toxicity and damage to internal organs.

Inhalation is a well-recognized method in aromatherapy, as inhaling essential oils can have immediate effects on mood and well-being. Similarly, topical application involves applying diluted essential oils onto the skin, allowing for absorption into the body and offering potential therapeutic benefits. Diffusion is another effective method, where essential oils are dispersed into the air using diffusers, enabling users to inhale their fragrant and healing properties.

Due to the potential dangers and complexities associated with ingestion, especially without a prescription or professional oversight, this method is generally not endorsed in the practice of aromatherapy.