The key to limiting them is that you focus on the most important emotional states. You respond to those that you need and if you don't need it, it doesn't change your state of mind. Not too difficult for us to interpret their emotional states, I would venture. I don't know of any grey owner that hasn't been able to detail their animals emotions about any given subject. So if we wish to try flower therapy we need to walk in their shoes and select the essence that best addresses the emotional state we are trying to relieve or ease.
Much information is available about flower therapy.
For all the essences using them directly, I have read use two drops unless you are using Rescue Remedy . If so, give four drops. Since I carry the bottle with me I have found using the ear effective. All the essences are preserved in some alcohol. You can make a dilution of your chosen essence by taking a 30 ml. bottle filled with water and adding two drops.