baby cough

Katie • ...
My baby boy, who's 4 months, has developed a cough this last week. It's not a bad cough and sounds like when someone's pretending to cough. I've not really been too worried about it because he's done in himself and doesn't have a temp. I put it down to him teething badly as I read they can develop a cough from the extra spit! My mum thinks I need to speak to the health visitor which of course I will when they open tomorrow I was just wondering if any one has noticed the same with their little ones and whether I do need to worry? It's not constant only every now and again