I am a therapist and have a client with bizarre symptoms and suspect that she is intentionally injuring herself. She has multiple areas where her skin is either blistered or an open sore. She goes to emergency rooms frequently with her baffling symptoms. No one can figure it out. Her husband contacted me recently to say that he is becoming suspicious. He found a half empty bottle of the cleaning product CLR hidden in the back of a cabinet that he has never used. He cleans the house and she works. Could the application of this product burn the skin enough to leave a large open sore?