i think if you jz drink more water during that moment, small portion, little by little...TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。0 k' f2 i* B0 o1 \6 h* T& P' o
or you can try to hold your breath and try to inflate your abdomen( make your stomach bigger with mouth closed) " M9 R" o; ]/ b/ Ri tried all above method and they helped....