Hi, The most probable reasons for your symptoms may be one of the following: - Sinusitis giving green mucus that on accumulation turns into scab - Dry scab becomes adherent to the mucus membrane and on forceful removal or blowing will separate the mucus lining thus causing bleeding - Local rhinitis problems - A condition called atrophic rhinitis Hence I would advise you the following: - Use diluted soda-bicarb solution in affected nostril after consulting your ENT Surgeon how to prepare and use it - This will allow the separation of scab from mucus membrane hence not causing bleeding on removal - Humidify inhaled air - You need a proper course of an antibiotic and anti-inflammatory medicines - ENT Endoscopy and CT scan for nose and sinuses All these will give further diagnosis so that a specific treatment can be done. Complete the courses till cured. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. T. Chandrakant, General Surgeon