my 3.5 month old baby is having dark red in his tongue tip from today morning. what is the reason for it and what should I do?

A. Is your child showing any kind of discomfort or disturbance because of that if your child is behaving like this that the child is having pain or any trouble then you may check with your doctor otherwise I would like to tell you this would be normal situation that you are mentioning but just to be on the safer side you can take a check with your doctor that