Nosebleed after cold is mainly due to the increase in vascular permeability of the nasal mucosa, the blood of the nasal mucosa from the nasal cavity, causing bleeding and rhinitis infection, dryness has a certain relationship. If the treatment is mainly with ice compresses on the nose, in addition to cotton balls can be dipped in a little ice water to plug the nasal cavity, there is also a very good treatment of nosebleeds, itself is not very serious premise before you can do so. There are also a lot of nosebleeds, you can go to the pharmacy to buy Yunnan Baiyao oral. Yunnan Baiyao has a very good effect on the treatment of nasal mucous membrane bleeding, this situation is generally not too serious, as long as you pay attention to never use your hands to pick their nose, do not dig the nose. Generally speaking, colds do not cause serious nosebleeds, if there are recurrent or more serious nosebleeds promptly to the hospital.