It doesn't matter if it only hurts the surface, but it will leave a scar on the dermis. I've had the same experience. Half of my face began to completely wet, and it turned black the next day, but now it is as good as before. Just use anti-inflammatory drugs without pigments and eat more pig's trotters, pigskin, fruits and so on. Eat less food with heavy pigments. Later, after scabbing, I applied aloe vera and rice wine, which is a traditional way to prevent stains.

The most important thing is: prevent infection, prevent pigmentation and promote healing!