Last night my son started complaining about neck pain... especially when turning or moving his head.…

Last night my son started complaining about neck pain... especially when turning or moving his head. I thought maybe he caught a chill or twisted it... This morning he woke up and is still complaining, pointing to the left side of his neck... it also hurts to lift his shoulders... I've been applying Menovazin and wrapped him in a scarf... maybe it's a virus, but he doesn't have a fever, his throat is a little red, and his nose seems clear... which doctor should I see, or will it get better on its own? Our pediatrician, to put it mildly, isn't very helpful... my son is an athlete, and he has competitions soon, so he needs to be in top shape.