<s>[INST] I have developed what appears to be a sack full of blood in my left nostril.  I have tried blowing my nose but it wont come out however as it becomes a little difficult to breathe on two occassion so far I have broken the sack twice and the blood has oozed out. [/INST] Hello greetings amass in nostril which bleed on touch or blowing with airway obstruction are commonly observed in nasal polyps such a patient comes to me in my clinic I would rule out nasal polyp first.I would suggest you not to hurt your nose by blowing or scratching very frequently can use decongestant nasal Chat Doctor. Hope I have answered your question. If you have any further questions I will be happy to help wish you good health regards </s>