The most common cause of dry boils in the nose is the frequent digging of the nostrils, which leads to mucosal erosion and tissue exudation in the nasal vestibule area. Eczema-like changes can also occur, which can lead to recurrent dry boils. At this point, digging by hand leads to more exudate and repeated inflammatory stimulation, forming a vicious cycle. There is also a part due to inflammation of the nasal cavity itself, such as atrophic rhinitis, dry rhinitis, and caseous rhinitis, which can lead to necrotizing-like nasal secretions in the nasal cavity due to inflammatory reactions, which can feel like more dry boogers.