I understand your curiosity about cold sores and piercings, but I would not recommend getting a piercing in an area with an active cold sore infection. Cold sores are caused by the herpes simplex virus, which is highly contagious and can spread through contact with the fluid from the sores. Getting a piercing in that area could potentially introduce the virus into the piercing wound, leading to further complications and spreading the infection.

Instead, I would advise waiting until any existing cold sores have fully healed before considering a lip or nose piercing. It's generally recommended to avoid any piercings or procedures that could break the skin when you have an active herpes outbreak. Once the sores have completely cleared up and the skin has fully healed, it would be safer to get a piercing, if desired.

However, it's important to discuss your specific situation and concerns with a healthcare professional or dermatologist. They can provide personalized guidance based on your individual circumstances and the severity or frequency of your cold sore outbreaks. They may also advise on proper aftercare for piercings to minimize the risk of future outbreaks or complications.

Please don't hesitate to reach out to healthcare professionals for expert advice on managing your cold sores and considering any piercings or procedures. Your health and safety should be the top priority.