thankx guys.......i tried the makeup trick..bt its not actually working coz i have some very deep wounds.I am not actually ashamed of SI scars,but the problem is my parents.They would never understand,Instead they would just yell and shout at me.And sadly i cant have tattoos,i am not 18 yet.I once wore full sleeve tight dress (i tightened them more at the left hand side),so that the nurse wouldnt be able to take blood from my left hand.it worked that time.but it wont work anymore,she ought to get doubts.