Dry, crusty and painful inside of the nose may be due to atrophic rhinitis, dry rhinitis or nasal vestibulitis. 1. Atrophic rhinitis: If you have atrophic rhinitis, you will experience thinning of the mucous membrane, decreased secretion, and a dry and painful sensation in the nasal cavity. There is an increase in brittleness and susceptibility to rupture and crusting. 2. dry rhinitis: with dry rhinitis, there is a painful sensation of dryness due to decreased secretion in the organism, and the mucous membrane breaks down and dries out quickly, forming nasal crusts. 3. Nasal vestibulitis: Nasal vestibulitis is mainly due to inflammation and infection of the nasal vestibule, the cause of most of the bad habits of nose picking, chronic inflammation stimulation, resulting in reduced resistance, may be manifested as dry crusts inside the nose, accompanied by a sense of pain. If the nose is dry, crusty and painful, it is recommended to actively consult a doctor for a clear diagnosis.