autotherapy; self-healing
Refers to the body's natural ability to heal itself or to self-treatment methods that rely on natural processes.
To enhance the body's self-healing ability, sufficient sleep and nutrition are necessary.
He tried to cure his illness through self-healing without relying on medicine.
自然治癒 is more common and specifically refers to natural healing or spontaneous recovery, often used in medical contexts. 自然治療 is less frequent and can imply a broader concept of self-treatment or autotherapy.
Compound of 自然 (natural) and 治療 (treatment, therapy). The exact historical derivation is uncertain, but the term is used in modern Japanese to describe self-healing or autotherapy.