Adam Michael has this to say “Blue/German chamomile essential oil contains more of the prized constituent of chamazulene than chamomile roman and is renowned for its soothing and anti-inflammatory actions. Very useful for treating abrasions, dermatitis and valuable in treating any condition where there is inflammation present, whether internal or external. It can be used in hot compresses on boils, abscesses, infected cuts, splinters and on tooth abscesses until the sufferer can get to a dentist.
Blue chamomile essential oil compresses over the affected area should be used for internal inflammatory conditions, particularly of the digestive tract, such as colitis, gastritis and diarrhea, especially if the latter is chronic. Tension and anxiety are often at the root of these conditions, and blue chamomile has a profoundly calming effect on the emotional level. The properties and uses of blue chamomile essential oil often overlap with those of lavender, and if you need to decide whether to use lavender or blue chamomile in any particular situation, it may be useful to remember that blue chamomile is generally better for dull aches and pains, while lavender may be better for a pain that is sharp and piercing. Produced by steam distilling the flowers of Matricaria chamomilla, deep ink blue in colour and of a pourable viscosity.”