... the pain for patients who has arthritis, periarthritis, Back and leg pain, rheumatism and rheumatoid, cold extremities, affected parts will ... the pain for patients who has arthritis, periarthritis, Back and leg pain, rheumatism and rheumatoid, cold extremities, affected parts will ... water and seek doctor if symptoms persist. 4: Keep unused warmer pad in original bag. 5: Avoid direct sunlight, and keep ...