味甘咸温．入足太阴少阴经．功专浓肠胃．补肾气．多食闭气．小儿疳疮．生嚼敷之良．并止鼻衄．涂筋骨碎断．消肿痛．行瘀血．风干者佳．壳止便血．壳内薄皮治骨鲠．俱烧灰存性用．