Described here are devices, methods, and kits for acupuncture or acupressure therapy. The devices may include a tissue-piercing member and a reservoir containing an agent. The devices and agents may be packaged as kits useful for relieving pain and/or treating various medical conditions. The devices, methods, and kits may enable less skilled practitioners to administer acupuncture or acupressure therapy, and may extend the duration of pain relief or other symptom relief.