Tue, 7 Aug 2012
                                                                    
                                                                      Answered on 
                                                                
                                                                    
                                                                    Mon, 8 Apr 2013
                                                                    
                                                                      Last reviewed on   
                                                                
													2 Doctors agree with this answer
													2 Doctors agree with this answer
													2 Doctors agree with this answer
													2 Doctors agree with this answer
Is he having cough associated with it? It can also be associated with infections in the oral cavity. Do get it checked by an ENT specialist. Sometimes it can be due to psychological factors as well.
													1 Doctor agrees with this answer
                    
                                    
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