Radionics is, like radiesthesia, a technique of healing from a distance, and the two therapies are often used in conjunction with each other. As with radiesthesia, the principle is based on a universal energy flow connecting all living things. Radionics was developed early in this century in California, but banned in the USA during the 1960s. Since the 1950s the UK has been the world centre of radionics, but there is poor scientific research on the subject. The therapy does seem to be particularly effective for certain conditions such as asthma and allergies, however, and many practitioners are extremely popular, which suggests some success. Toxins in the body that are not detectable by conventional means can be identified and dispersed by radionics as well as radiesthesia.
There is certainly no danger in the therapy other than the convictions of the practitioner, who may try to persuade a patient to stop or avoid other treatments that may in fact be successful. Be wary, but by all means use this treatment of distant healing in conjunction with other forms of therapy.