Reiki is a form of spiritual healing where you channel energy (ki) through your hands into a person, pet, situation, etc.
In order to be able to use Reiki, you are supposed to be initiated or attuned to the Reiki energies, which is done by a Reiki Master. The first Reiki Master and founder of the system was Mikao Usui who set up the tradition in 1922 and attuned 16 Reiki Masters, among them Chujiro Hayashi, who simplified the system and who in turn attuned Hawayo Takata, who popularised Reiki in the US.
There are 3 levels of Reiki, the First Degree, which allows you to channel the energy through your hands, the Second Degree, which allows you to use Reiki symbols to enhance the energy flow and perform remote healing and the Master Degree, which allows you to attune other people into Reiki.
I have only trained up to the Second Degree and had really good results using it on myself. It is the only thing that works for me on sinusitis, so I am very pleased with it.
One thing that puts me off Reiki is that I have encountered so many Reiki practitioners who fall very much into the “I am more spiritual than you” category (e.g. by having to channel Reiki energy into their food or drink for 5 minutes before ingesting it) and some being really pretentious about being Reiki Masters.
But, anyway, back to allergies: I have observed a Reiki Master help people with allergies by letting them touch the allergen they were reacting to while sending them strong Reiki energy. The Reiki energy is supposed to balance your system and I guess it works in the way that your body goes “Hey, I’m feeling pretty good and balanced. Even though I’m touching this thing that normally makes me feel bad. Maybe I don’t need to react to it, after all.”.
Whichever way it works, I have not been able to replicate it, but maybe that is because I am not a Reiki Master.
Certainly worth checking out. Please share your experiences.