Does anyone have any experience with this condition?

No personal experience, sorry, but you could also try antihistamines and moisturiser if the lesions are itchy. It can be caused by lots of things, usually a viral illness (especially the cold sore virus) or certain medications. There's probably not very much you can do to get rid of it but it should start to clear up within a few weeks.

Hope you feel better soon!

Thank you. The first time I went to my doctor he prescribed me strong antihistamines, as the over-the-counter ones I had been using were doing nothing for the itching or redness. I couldn't sleep very well for a week before I got the prescription. Now those have run out, the itching has almost gone, I will keep going with the regular antihistamines.

My doctor said it can be cause by the cold sore virus like you said or the fact that I've recently changed my contraceptive pill about 3 months ago. Interestingly, my boyfriend gets cold sores, but last time I saw him in December/January, he didn't have one, and you can only pass them on if you have one at the time. Hopefully the cream works and they go away.

Thanks for your response.