My nephew is 4 years old. Since last 4 days he is having pain in his throat. He is constantly crying. Pain is worst at the time of swallowing. One doctor said there is ulcer and prescribed defcort syrup for 3 days. But still there is no effect. Then another doctor told it is throat infection and prescribed coldnate and mormect syrup. But even after taking medicines still it is not cured. When he gets up he feels like pain is gone but within hour pain gets worst. Please suggest me what is happening to him and suggest me some medicines.