Is clearing your throat a lot bad?

Throat clearing. Repetitive clearing of your throat could be a sign of postnasal drip, allergies, sinus, reflux or even a tic.
Yes. Repetitive throat clearing may cause trauma to the vocal cords. The more important question is why are you clearing your throat a lot? Clearing your throat a lot can be a nervous habit, a tic, or a response to irritation from smoke/allergies/post nasal drip. You may want to see your doctor to investigate this further.