He should check his BP morning and evening for about 7-10 days.
He should go for morning walk , about 2 km initially. He can have a glass of luke warm water before going for walks.
He should avoid spicy and fried foods.
He should cut salt in his diet. He should avoid alcohol and smoking.
All these factors will help him.
Next Steps
He can consult me on Practo with his history of investigation and medication if he has taken earlier.