Suddenly overnight 3 days back, when I woke up, I got a hard lump on right side of my neck below my ears. It is very painful and because of the lump, im constantly getting fevers. If I touch the lump, it is very painful.. I tried hot spongeing on the lump, no difference. So far, I have only been eating paracetamol for the fever. The lump is hard, its not soft like the ones with fluid in them. It is NOT moving when I press over the lump or run my fingers over the lump. It came suddenly overnight. My parents think it is because I take bath in the night and apply oil in the night and sleep directly below the AC. But what is the real reason? Kindly help me.