My name is Parh. My 2 year old son (Evan) has been sneezing blood in his catarrh all morning , following a cough crisis and runny nose (which i considered as the common cold virus). He had previously been diagnosed with swollen adenoids (last year). Last year, he used to have catarrh and cough all the time and the doctors kept telling us it would go away after lots of water and rest. Could this be something serious.