He should eat food that has lot of fibre such as vegetables fruits cereal Drink plenty of water Consult a doctor if there are complaints of blood in the stool ,fever or weight loss

Please nothing to worry because during the covid time usually the patient will be more anxious and under the stress. Can constipation may be the sequel of covid infection stress. Tell your father to take at least two litres of water in one day and his food should be rich in green leaves and green leafy vegetables, and one banana to be taken after the dinner in the night. watch for the improvement for 24 hours and if there is the improvement then medicines to be provided and for the details please try to contact me.

It causes of constipation