Shitali

-Sit comfortably in any meditative posture, preferably Padmasana or Sukhasana. —Pout your lips and stick out your tongue. Curl it so that the sides turn up and a hollow tube is formed in the centre. 
-Inhale slowly, smoothly and fully through the tube formed by the tongue. 
-Withdraw the tongue inside and close your mouth. Exhale through your nose. 
-Repeat it 4-5 times. 

This pranayama helps in psychosomatic ailments and helps in reducing ailments of the abdomen.