Nasal sprays are fine as long as they aren't prescription ones. I am taking afrin because i have a viral infection. It's nothing to worry about.
if your OB thinks its okay to take, then it should be. Otherwise she would not have included that on the list. Sometimes it depends upon what you have already been taking, and if you have normal pregnancy...if you have a doubt, u could always call ur OB and if youre still unconvinced, go with ur gut. If it doesnt seem right, dont go for it. Just like food , when in doubt throw it out... but its much better to seek opinion esp now ur pregnant.