Hi my 17 months old son fell on floor and his head struck on edge of chair. Immediately I noticed a bump on his forehead and also there was a vertical blue line in the middle of bump. He cried for few minutes. After that he was busy with his toys. He did?t vomited or anything. Now after 4 days there is still swelling on that area but lesser than before and that area is soft. He did?t feel any pain on touching it. Is this swelling normal or I should go to doctor.