Hello Doctor, my son has a small cyst on left side of neck from last 2-3 months in vein which is visible when he turns on right side & when we touches that vein...we asked our doctor he said let see if it becomes big....now such a small cyst is also visible on right side of neck....there is one more above the thigh on right side leg....our baby is 9 month old only and we are very scared of these cysts....what are these actually and emerging as time go on....is there any matter of concern? should we visit any other doctor? pls help