chewing problem

My father ### 70yrs old. He has chewing problem. N can't swallow. He's throat muscle has become weak. So whenever he eats he gets chocking. While drinking water also. We give him food in Puree form. Even puree food also is sometimes little difficult to swallow. He's throat has become numb. Weak...

My father ### 70yrs old has coughing since a week. Especially at night time while sleeping time he coughs more. Throat irritation. Scratchy throat. Waking him up every night. Not letting him sleep peacefully. He needs to sleep well at this old age. He's unwell too. On medications. Feels dizzy...