"Auricular acupuncture is probably the most developed, best documented scientifically of all the microsystems of acupuncture; it is also the most practical and widely used." a quote from the World Health Organization in 1990.
Research shows that the outer ear is connected to the entire central nervous system, like a keyboard connected to a computer. Pressing on one of the auricle's "keys" affects the programming of the self-regulatory system.
Locating points on the ears is much less difficult than you think.
Ear pellets or ear seeds are the perfect self care item. These pellets have a superior adhesive and the crystal pellets are non irritating. These are medical grade, latex-free plasters.