External preparation for combined prevention of coronavirus and influenza virus

The invention discloses an external preparation for combined prevention of coronavirus and influenza virus, the external preparation contains a coronavirus neutralizing antibody IgY and ursodesoxycholic acid, the mass ratio of the coronavirus neutralizing antibody IgY to the ursodesoxycholic acid is (1-2): (45-90), and the total mass of the coronavirus neutralizing antibody IgY and the ursodesoxycholic acid is not less than 4% of the total mass of the external preparation. The preparation is administered in an atomization administration mode or a direct eye drop administration mode, is simple to use, is free of trauma and pain, and is effectively verified to have the effect of effectively preventing the coronavirus and the influenza virus through animal tests. 本发明公开了用于联合预防冠状病毒和流感病毒的外用制剂，该外用制剂中含有冠状病毒中和抗体IgY和熊去氧胆酸，冠状病毒中和抗体IgY和熊去氧胆酸的质量比为1～2:45～90，且冠状病毒中和抗体IgY和熊去氧胆酸的总质量不低于外用制剂总质量的4％。该制剂以雾化给药或者直接滴眼给药的方式进行给药，使用简单，无创伤无痛感，并通过动物试验，有效验证了该制剂能够有效起到预防冠状病毒和流感病毒的效果。