Hot water burns 7 week

Anahi • Sun, Mar 27 • My name is Anahi I`m 21 years old. Mother of two wonderful children my girl is 2/12 and my boy is 2 months

I was bathing my son of 7 weeks in the sink and my I accidentally hit the Handel to control the water it got hot it touched him 1 second I noticed as soon I did it . It's not red no more but please help and tell me if it looks okay or need to go to the doctor ?