There are a few basic steps to take care of Rudraksha:
The Rudraksha beads may be cleaned periodically after a period of 1-2 months or when you feel that they need to be cleaned. For this, the beads should be dipped in warm water and after which they can be gently cleaned with a very soft fiber brush under a stream of clean water. One should never use strong detergents or very hot / boiling water. Thereafter, the bead should be kept on a soft absorbent cloth or tissue paper for drying. Once the beads have dried up then you may apply small quantities of Olive oil to the bead preferably with the help of a soft brush.