Just wanted to mention that I have been faithfully using a antihistamine daily for months. I set my daily pills aside ahead of time so I wasn't really thinking about what I take when I popped my pills in the morning. Anyway, I got a bad cold about a week and one-half ago and it has turned into the worst sinus infection I've ever had. I even ended up with pink eye because the sinus drainage had nowhere to go and was unusually thick (a side effect of the antihistamine). I've had sinus infections in the past but this was by far the very worst. I was very, very ill from this. Then I found out that antihistamines can thicken mucous when you have a cold or infection. So if you get sick, you might want to forgo your antihistamine if you take it as part of your regimen. I wish I had...yeesh.
All good things,