Health Is it common to get lice while pregnant? How do you get rid of lice when pregnant? Head lice during pregnancy and breastfeeding can be treated with pediculicides including permethrin, malathion, and ivermectin. There are studies providing evidence that these agents do not increase the risk of birth defects. Related Posts:Ricola products are not safe for pregnant women, but can I eat it?What is the most effective treatment for head lice?Who is more likely to get lice?Can you suffocate lice under water?