This is not the normal reaction one will get from eMatrix, it is unusual. If you see your eMatrix specialist, he or she can work things out- it maybe due to various factors including an irritant reaction to creams, post op care, - they will also take bacterial and viral swabs to get to the bottom of things. Incidental acne may result, but once again this is easily fixed with proper medication. All the bestDr Davin Lim Laser and aesthetic dermatologistBrisbane Australia.
Although temporally related, there is no association between the treatment and the development of what you are referring to as 'cold sores'.
Seek guidance from a dermatologist.