Headache even after taking treatment.

So, doctors I want to ask one thing. My dad has mild localised acute extra axial hemorrhage seen over right cerebral convexity, in fronto-parietal lobe region( thickness 4.5 mm). He was taken to the hospital and treatment is going on, but the thing is he still has a headache and when I asked him it was in the right side. For surety we are going to visit a doctor in Delhi also. I just want to know if there is any case of urgency? Or should we fasten it coz he already had a treatment and also I have told you the size of the hemorrhage. Is it normal? Or should we fasten it? We asked many people and they said there is nothing to worry much. We are going to take him for another doctor visit, but that will be after some time. Just tell me docs. I just want to know is there anything to be thought of or not?