Single herb infusions can be used, and tolerance is generally better. Herbal tablets or capsules are usually best, as absorption is slower than with teas. If using alcohol tinctures, be sure to add the tincture to boiling water to drive off some of the alcohol. In terms of traditional Chinese medicine many highly sensitive patients are qi deficient. By gradually building up qi , they can overcome some of their intolerance.
Aromatherapy can prove useful for calming the nervous system.
It is important for the clinician not to jump to conclusions. Be prepared for surprises. One highly sensitive patient said they were intolerant to all herbs, yet she showed up at the clinic with a large cup of coffee each visit. Feel free to refer out to supportive practitioners such as clinical ecologists who specialize in treating the highly sensitive. Body workers, hypnotherapists and acupuncturists can also be very helpful.