You can take benadryl, as for the herbal teas I have heard bad things such as they can cause miscarriage and softening of the cervix which could cause pre term labour. I figured this out today when I bought my favorite sleepy time herbal tea and it said on the box to consult my doctor before drinking it. :( Just a heads up.
My doc told me tylenol cold and sinus was ok in moderation
No none of the over the counter cold medicines is okay for you if your pregnant. I drank herbal teas. Used Vicks in a cup with some water heated it up In the microwave in a coffee cup and inhaled like a humidifier. Slept it off