Baby always with tongue out

Lianne

hello ! Maybe this is kind of stupid, but idk if i should be concerned about my baby constantly showing his tongue. he is now almost 10 months but hes been doing this for the longest time. I had asked the doctor once and she said it was because he was congested (hes had bronquitis ) and to not worry about it. I have tried to look up information but everything says its normal for babies to stick their tongue out. any thoughts??it is mostly when hes focused playing/doing something or staring at something.