I would like to know how can I get away the wax to get out the specimen. It is rather urgent and I would appreciate immediate reply if possible. Thank you very much. Hexane, heptane or Petroleum Spirits 60-80, warmed slightly if necessary, would be suitable. Make several changes to make sure you get all of the wax out.
Times depend on specimen size and nature.
3 X 10 minutes might work, or might be too short. Look for a transparent quality to the specimen, that should indicate that all the wax is gone and completely replaced with xylene. What you do next depends on what you're after. Just reverse the usual schedules using in LM paraffin staining. Whether the specimen can go through this and stay in good condition depends on the specimen, and to some extent on how much you need fine details.