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。5 X9 _& z# U0 \$ \. [' D. L
or you can try to hold your breath and try to inflate your abdomen( make your stomach bigger with mouth closed) x+ H* ~2 o$ d" Q! ?. a5 S, ?( ~tvb now,tvbnow,bttvbi tried all above method and they helped....