“…The time period between the initiation of drug and onset of rash ranges from days to years, with most cases occurring within 2 months . Isoniazid, pyrazinamide, ethambutol, and rifampicin all have been reported to cause LDR (Table 1; Choonhakarn & Janma, 1999;Grossman, Warren, Mady, & Satra, 1995;Sharma et al, 2001). Oral mucosa involvement is rare (Garg, Gore, Jain, & Kumar, 2015).…”