A constant sore scalp is not normal and should be looked at by your doctor, to ensure that the sore scalp is not indicative of a underlying serious health condition. Some people keep a sore scalp and label themselves as tender headed and think nothing of it.
These are the four distinct stages in an average house fly's life: Egg: Depending on the size of a female house fly, she can lay up to 500 eggs in a three to four day period. Eggs are white in color and are usually less than half and inch in size. Larvae: Larvae are commonly referred to as maggots. Maggots emerge from the eggs within eight to 20 hours of being laid.
1. A fly begins life as a fertilized egg. 2. Larva: The egg hatches into a tiny worm-like maggot which looks nothing like a fly. The head of the maggot is enlarged 100 times. The maggot eats and grows large. Then it grows a kind of leathery case around itself and becomes a pupa.