Hello Thank you for trusting HCM Dear many reasons for scab in the nose it may due to impetigo, or herpes simplex can cause fluid filled cysts turned into golden yellow scabs. It may due to nasal mucosa dryness may cause this problem. It may due to nose piercing scab, it may due to sunburn or sinus infection can cause scab formation. Infections this area can cause spread of infection to cavernous sinus. Treat early is important. Use humidifier and normal saline nasal spray frequently. Tab. Amoxillinclvulinate 625 thrice a day for 5days useful. Still symptoms persist please consult your doctor he will examine and treat you accordingly.