How long is a cold sore infectious for?

[weddingdress]

I have never had a cold sore and don't want to start now.

DP has one and has been suitably quarantined for the last 2 weeks. It has now scabbed over and is dry, but not gone. Is he still infectious? - I really want a kiss

2 bleeding long - I'd leave it a bit longer... sorry

this is what nhs direct says:

It is not possible to completely prevent primary infections, or outbreaks of cold sores. Cold sores are at their most contagious when they burst (rupture), but they remain contagious until they are completely healed. Therefore, it is important for others to avoid direct contact with your affected area until your cold sore has completely healed and disappeared.