home remedy; layperson's medical treatment
Refers to medical treatment or remedies administered by someone without professional medical qualifications, often based on folk knowledge or personal experience.
My grandmother knows several home remedies for colds.
You should see a doctor before relying on layperson's medical treatment.
民間療法 refers to traditional or folk medicine practices, often passed down through generations, while 素人療法 emphasizes the lack of professional medical training of the person administering the treatment.
Compound of 素人 (しろうと, 'layperson, amateur') and 療法 (りょうほう, 'therapy, treatment').