<s>[INST] One of my nostrils is clogged all the time but when my left nostril gets clogged and I blow it, blood comes out with the mucus. When my nose is all clear and feeling easy to breathe through I get a sneezing sensation. What is wrong with me ? [/INST] Hi, You are having allergic rhinitis, your nose is getting blocked quite often with sneezing episodes. In a congested nose if you blow forcefully there is submucosal bleeding which is the reason for blood tinged mucous. You need to start on steroid nasal spray and anti histaminic after consulting your ENT specialist. Do steam inhalations and drink plenty of warm water. Regards Dr. Naveen Kumar </s>