 [ Symptoms ] im pregnant and am feeling a slow leakage of fluid did my water just break  im 37 weeks pregnant i went to the doctors today and she told me i am dilated 2cm and my cervix is thinning [ Disease ] i do not recommend giving your child benadryl on top of zyrtec they are both antihistamines and will individually have the coverage your child needs for allergy relief however you need to partner with your pediatrician or other health care providers to make sure this dose is safe and effective for your child both medications are readily available over the counter but for self use the directions on the boxbottlepackage must be followed