Is it bad to sweat when you have a second-degree burn?

Yes, sweating with a second-degree burn can be problematic. It may cause increased irritation and discomfort, and the moisture can lead to a higher risk of infection if the skin is not properly protected. It's important to keep the burn clean and dry, and to avoid activities that cause excessive sweating until it heals. Always consult a healthcare professional for specific advice regarding burn care.