noun
cold compress; cold pack
Medical term for applying cold to an injury or affected area to reduce swelling or pain.
捻挫したら、まず冷罨法で冷やしてください。
If you sprain something, first apply a cold compress to cool it.
Warm compress; the opposite treatment using heat.
Compound of 冷 (cold) and 罨法 (compress/medical application). The exact historical derivation is uncertain, but the term is used in modern medical contexts.