Breastfeeding women can soak foot light san, treatment of some skin diseases of the feet, but after soaking about three days can not be normal breastfeeding, after three days can be normal breastfeeding. The principle is that as a kind of clearing heat and drying dampness, killing insects and convergence of sweat of the skin medication, for the skin of the fungus has a very good inhibition, can be localized to kill part of the bacteria. Clinical application has a certain degree of harm, especially for allergic patients, weak patients, these are contraindications. After pregnancy, after birth, lactating women, belong to the type of physical weakness, not suitable for the application of the foot Guangsan a lot of external use of the feet, or easily induced changes in the composition of breast milk, and the health of the fetus to cause certain problems, so in the clinic should try to be careful to apply.