Is it safe to breast feed my child or should I stick to formula. Prednisone has a relatively short duration o action. It is out of your system within days. Therefore, it is safe to breastfeed and you will not be passing along the prednisone to your infant. Be aware that the immunomodulating agents such as beta-interferon is secreted in breast milk.
Current recommendations are against breastfeeding in women taking the interferons.
You are not going to be taking corticosteroids during the breastfeeding period and therefore it is safe. There's a theory that MS and drinking cow's milk in childhood are related, because there is a higher prevalence of MS and of diabetes in countries that use more cow's milk. But, that is still a theory at this point. There is no evidence that women with MS who breast feed do better than those with MS who do not. There are some medicines that women can pass along in the breast milk that might potentially harm an infant, so it's important to review these.