hi i suffer badly with cold sores and have had a lot more during my pregnancy im 33 weeks so i went to the doctors to ask about what i can use. There is no coldsore cream that is safe. It hasn't been proven that it is safe, Which gave me my answer not to use it, but what i have done is bought some alcohol swabs from the chemist which is fine to use. i think there about 25c for 5 and just kept applying them on it till it went, usually its gone within 5 days and its safe.i rang 3 different chemists about the coldsore cream and they all gave me different answers so thats why i went to the doc.she actually looked the info up. i hope this helps