Hi, I don't know what it is. But my dad feels so discomfort sometimes. He says that there is something in his nose. But he can't get that out. It's been more than 3 months he has this complaint. Sometimes, he will be free but sometimes he feels again there's something like that. I don't understand what it is. But I observed something, when he has much stress or work, this feeling increases. Can you help me in finding it? Thanks