A 32-year-old male presents with sores on his face and arms….

A 32-year-old male presents with sores on his face and arms. He appears malnourished, his teeth are in poor repair, and he admits he has not slept in 72 hours. He is picking at his skin during the interview. These physical signs are most indicative of chronic use of:

A 32-year-old male presents with sores on his face and arms….

A 32-year-old male presents with sores on his face and arms. He appears malnourished, his teeth are in poor repair, and he admits he has not slept in 72 hours. He is picking at his skin during the interview. These physical signs are most indicative of chronic use of: