During the acute phase of calcific tendinitis, cold compresses are suitable because heat and swelling accompany the shoulder area. Wrap an ice pack in a towel and apply it for 15 to 20 minutes, repeating 3 to 4 times a day. Exercise caution when applying cold compresses directly, as this may cause skin damage. In the chronic phase or rehabilitation phase following the acute phase, hot compresses increase blood flow around the tendons and aid in muscle relaxation, accelerating recovery. However, since applying a warm compress when swelling or redness is present can worsen inflammation, it is important to carefully distinguish the condition. Perspective of a Korean Medicine Clinic In Korean medicine, acute heat syndromes are treated by cooling down and reducing inflammation, while chronic coldness and stagnation of Qi and blood are treated with warming therapies to promote circulation. When cold energy and dampness invade the shoulder, causing stagnation of Qi and blood circulation and phlegm, warm acupuncture and moxibustion with heat effects are effective; this aligns with the rationale behind warm compresses in Korean medicine. At Dongjedang, we monitor the sensation of heat and nocturnal pain patterns during treatment to guide the appropriate timing for cold and warm stimulation.