Theoretically, it is possible that diphenhydramine could affect a woman's milk supply, since the medication can suppress prolactin (a hormone important for breast milk production). However, this is probably not an issue for women who are well-established with breastfeeding.
PRO is a strategic communications firm helping high profile individuals, professional teams, national governing bodies, corporations and non-profits within the sports industry build their brands through the media.
Pros are the primary positive aspects of an idea, process, or thing; Cons are the primary negative aspects. The term Pros and Cons means both the primary positive and negative aspects of an idea, process, or thing, and is often used to clarify or decide whether that idea, process, or thing is mainly positive or mainly negative.