Confirm this with your doctor... :d
but it sounds like . . .
What you actually have is called keratosis pilaris, a common mild condition in which the backs of the upper arms look rather like dried out, plucked chicken flesh. If this is the case, half of your children are likely to have the same future in store for them. Keratosis pilaris is hereditary. The rash is caused by firm little plugs forming in the hair follicles. The plugs themselves are made of bits of keratin, the main protein found in the outermost protective layer of skin (thus the name keratosis). These plugged follicles give the skin a raised, stippled appearance. Since the rash is associated with and worsened by dryness of the skin, most people experience a clear-cut seasonal variation -- generally worse in the winter. Although the rash changes in intensity from time to time, the baseline usually stays the same until middle adolescence, when it begins to improve. Adults who still have keratosis pilaris often experience further improvement during the middle decades. Usually it is on the arms but is also found on the backs or fronts of thighs and buttocks. Some people even experience it on the face. It is not curable but is treatable! I have had it since childhood, a terrible case of it, and have found physician who finally knew what they were talking about! I am 33! The following treatment has in 4 weeks given me silky smooth arms with very slight visible bumps (far cry from the red sometimes painful itchy bumps) I also now have a fine down of hair finally growing on my arms for the first time ever. Ok, shower and use a coarse body brush or strong loofa to scrub the bumps (all of them) with an acne body wash like neutrogena. It may be painful for the first few days, but its worth it. After you towel dry, apply lac-hydrin cream (this is prescription, so find a doctor that understands kerotosis pilaris) generously to area, then again at bedtime. Its not cheap, but you will see and feel improvment in a couple weeks maybe sooner! After they clear up, you can go to once a day to make your cream last longer. You won't be disappointed!
Als, make sure you are getting a vitamin a supplement, this will help keep your smooth skin, don't over do it on the vit. A though, you can overdose. Good luck! (i have a feeling I will be cutting and pasting this message a few times as alot of people have this problem...About 50% actually!!!)