The external application of Mannite does not need to be mixed with water. Women with mastitis or because of breast milk back to the breast swelling and pain can be used Mannite external compress, Mannite can disperse knot, swelling, pain, in the relief of swelling and pain at the same time can also prevent the emergence of mastitis, so in the clinic is very widely used. The patient in the use of direct crushed, and then put into two bags, placed in the breast for external compresses can be. Manganese will melt when it is hot, so after 1-2 hours of external application, there will be liquid oozing out of the situation, you need to put the manganese in a cool place to dry, rather than put in the sun to dry, because the temperature rises in the sun after the melting will be faster. In this case, the patient can then change the new bag for external application, and then alternately can be used, generally used externally for 3-5 days can play a good role in recovery.