Anyone suffered from cold sore before and/or during pregnancy?

I've never had them but according to an online article, cold sores will usually start to heal on their own within a few days. But if they cause pain or make you feel embarrassed, they can be treated as Hui Qun had mentioned. Treatment may include skin creams, ointments, or sometimes pills. Treatment may get rid of the cold sores only 1 to 2 days faster, but it can also help ease painful blisters or other uncomfortable symptoms.