Swelling of the hand from a sling injection is mainly caused by local edema caused by excessive infusion of fluid, resulting in local vascular leakage. In addition, elderly patients, the body resistance is relatively poor or albumin is relatively low, the systemic colloid osmotic pressure decline can also lead to local water seepage. This situation to play a hangnail edema treatment methods are as follows: 1, to promote local water to the surrounding diffusion, with hot towels hot compress way, promote the surrounding circulation and promote the water of the discrete tissue, back to the blood for reabsorption; 2, dressing magnesium sulfate, magnesium sulfate has an astringent effect, thirst to promote the absorption of water around and achieve the purpose of swelling; 3, the patient itself has hypoproteinemia, edema need systemic treatment, can be infused with albumin to improve colloid pressure. Can infuse albumin to improve colloid osmotic pressure to promote tissue reabsorption.