My baby is 1 year old. He had a fall from bed. His nose bled due to fall on sliding window frame.After a week I am noticing that his right nostril(which got impacted) airway has reduced in size compared to his left nostril airway.There seems to be a bulge inside nostril near bone area.We consulted his paediatrician and he said it is normal and did not recommend tetanus injection. Is tetanus injection not required? And why the airway has reduced?Will this become a serious issue in future?