Yes, he explained what happened in a Spanish interview. This is the google translation
. There, on the stretcher (massage table), I notice a scar on the back.
It happened to me when I was 10 or 11 years old. I had a herpes. I went to the dermatologist and he prescribed a compound that was made in a pharmacy to dry . They were mistaken. They gave me sulfuric acid. Two droplets and... burned me. Smoke appeared. I spend a year with an open wound