That depends on what you are treating, and why, and with what remedies.
During pregnacy, it is custom to give certain remedies one after another, to avoid abortion, ineheritance of disease, (call it genetherapy if you like)nausea and vomiting, this is all safe, if done by a experienced.
During breastfeeding it may not be so simple either, the same concearns com in here, some cases, one find that the mother has got a proble, that the child has got no part of, and if you then give a remedy, the child can get a prooving that is unpleasant, but not dangeourous, no homeopatic remedy is that, it is the one giving who is that, if he dont know what he is doing, he can then produce a artificial disease that may be uncurable, this goes for all high potences over x200.

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Homeopat MNNH Geir E.T. Marcussen
email: getm@eunet.no
http://www.homeopati.no