Rudraksh Beads or Malas made of original Rudraksha are very strong and have a life of thousands of years. It is usually passed on from one generation to another. Due to such prolong use Rudraksha beads and malas might get dirty or accumulate fungus. Those beads that are regularly worn also might require periodical cleaning.
After overnight dipping, take the Rudraksha out and scrub thoroughly with a soft toothbrush. (Please note that if there is any discoloration in the Rudraksha then it is a fake.)
After scrubbing, wash with normal water and allow the Rudraksha to dry.
Once thoroughly dried, you can wear it again. If you need to give a better shine, you can apply olive oil or sandalwood oil on the beads with a soft toothbrush. Allow the oil to dry away.