Oo, normal lang yan usually, lalo na kung isolated cough lang at walang ibang symptoms like fever o breathing trouble! A few of us moms noticed ganyan din sa aming babies, sometimes it's just random irritation sa throat or they swallowed something funny lang. But kung madalas na siya or may kasama nang ibang signs, mas better kung checkup na lang sa doc para ma-rule out kung may minor infection o something, kasi mahirap mag-alala lalo na sa babies.