When baby is born, s/he'll need special care. So, here's what instructions I'll be following about worming for the little one. The little one needs to be wormed with Ivermectin every 2 months, beginning at 3-4 months, until 1 year of age. Presumably, s/he'll be protected before then because she'll be on a mom-based diet! When s/he's at weaning age, she'll put herself in the way of possible parasites!