This is very common behaviour indeed. Strangely enough as with all habits the more you tell your son to stop and the more attention you draw to the habit, the worse it will become. Try your best to completly ignore his nail biting and with time he will simply stop. All the usual treatments for nail biting seem to have little or no effect.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.