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.
The eggs are small (1 mm, 1/32), whitish in color and slightly pear shaped. Bed bug eggs are difficult to see without magnification or a flashlight and are about the size of a pin head or speck of dust. An egg hatches in 10 days and will develop into an adult in 2 to 4 months.