Hard Cheese, Surface Cracking - Cause & Remedy

[Naplesfrank]

 I made a wheel of Pecorino Romano around the end of March.  While aging, my cheese cracked in a few places.  I washed the mold off of the wheel and placed it into a Rubbermaid container with a damp paper towel.  Thankfully the cracks disappeared within 4 days.  Well, last night I washed the mold off of the cheese again and low and behold there were a few cracks.  I was wondering since the cheese is now 3 months old, should I wax it to keep it from further cracking or should I repeat the same steps as before to rid the cheese of its cracks?  Thank you...

[Tomer1]

You can wax it to prevent further drying.
Cracking is likely from low humidity.