Hi Dear, Welcome to HCM. Understanding your concern. As per your query you have symptoms of blowing blood out of right nostril, Well there can be many reasons for symptoms you mention in query, In your case it seems to me that symptoms are due to sinus infection that is sinusitis , which occur probably due to untreated upper respiratory tract infection and low immunity. Need not to worry. For now take steam , do warm saline gargles and apply warm compresses to nose. I would suggest you to consult ENT specialist for proper examination . Doctor may order swab test , blood test , nasal endoscopy to rule out condition like nasal polyp and CT scan of sinus . Doctor may prescribe antibiotics at least for one week along with mucolytic agent and decongestant. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari