i believe the scientific name for this is folliculitis...like what primadona12 said, you should try VMV's id line. basically, you should try products na may salicylic acid content. 
im sorry sis but i have to disagree with the folliculitis thing, folliculitis is diffrent po from what we know as chicken skin, pag folliculitis kasi it means inflammation of the hair follicle..

ang term talaga for chicken skin is Keratosis Pilaris.
here are some infos about Chicken Skin aka Keratosis Pilaris.
What does keratosis pilaris look like?Keratosis pilaris (KP) resembles goosebumps in appearance, but is characterized by the appearance of small rough bumps on the skin. Primarily, it appears on the back and outer sides of the upper arms, but can also occur on thighs and buttocks or any body part except palms or soles.
How is keratosis pilaris diagnosed?No special tests are needed, a Dermatologist or General Practitioner should be able to recognize it.
Who does keratosis pilaris affect?Keratosis pilaris affects women, men, children, and babies. It is said to be a little more common in women than in men.
Is keratosis pilaris contagious?No. Keratosis pilaris is a hereditary skin disorder.
Can KP be prevented?No. Since keratosis pilaris is hereditary, there is nothing that can be done to prevent it. Following a treatment plan can alleviate the outward characteristics of keratosis pilaris.
Will I outgrow KP? Some people do outgrow KP, however many do not.
Keratosis Pilaris Tips-Use mild soaps or gentle body washes.
-Apply moisturizers frequently -- For better absorption, apply to the skin while it's still moist after showering.
-Take tepid showers rather than hot baths.
-Light exfoliation with an abrasive pad may sometimes be of help, however scrubbing the areas of KP is not recommended, and can worsen the condition.
-Keeping areas of KP exfoliated with a Salicylic Acid or AHA based lotion works best.
-In addition: For the UAs, wag na wag basain after plucking or waxing. After ko magwax ng UAs, i apply cold compress to close the pores. Keep it dry. So far, it helped naman na mawala ang chicken skin sa UAs ko.
HTH
