My boyfriend has a little bump growing on top of his eye lid ?

Warts: This is most likely something like a wart and can easily be treated at the family medical clinic or at the dermatologists.

Stye: A stye is an acute inflammation and clogging of an oil gland of the eyelid margin. Treatment is with warm compresses. If the oil and inflammation persists, you can form granulation tissue (that persistent, non-red, bump of the eyelid). Now called a chalazion". This may resolve with a lot of time, but commonly has to be excised and drained.