my father, 78 had bye-pass surgery 3 years back in March itself. However everything is ok, he is physicaly active but after 1 year of surgery, he started having hicups that last for 2-3 dayss. Earlier its was after 20 days or so but now gradddully its is after 2-5 days. and last for 2-3 days. We cosulted gasto doctor but no nsue. we had endoscopy, KFT, LFT .everything was ok. except a bit of fungal infection for which the doctor gave the treatment. he also had homeopathy treatment for 7 months. we are just fed up ..please help