Welcome to HCM
Your father suffered a paralytic attack that is CVA( Stroke
) you have not given information which side means right side or leftside,if it is right side usually speech is also affected.
In such condition patient some time find difficult to swallow,they should be fed in sitting position and very slowly semisolid diet and keep good hygine as otherwise food can get impected and infection and thrush
(Fungal) can occur.
If there is cough during feeding there is risk of aspiration then you should put a Ryle,s tube for liqid feeding and supplements can be given to keep good nutrition.
Please continue physiotherapy
and other medicines and if there is weight loss
or other sign of nutritional deficiency
pre formulated nutrition may be given in consultation with your doctor.
Please take good care of him
Good Luck to you.