Mad-Eye Moody's scars

[karen_lvssr]

No: HPFGUIDX 112658

Hi everyone,
I am fairly new to this group and do not know if this has been 
discussed.  
Has anyone an opinion as to why Mad-Eye's wounds/scars are 
still visible?  The reason I ask is Madam P. is able to regrow 
bones, shrink teeth, de-fur Hermionie, de-beard the Weasley 
twins, unpetrify people, heal burns almost instantly, etc......if 
the WW has the  potions/medicines and knowledge to perform such 
"cures", then why does Moody have part of his nose missing, a 
wooden leg and a pockmarked face?  These things obviously could 
have been taken care of.  Look in OoTP, Krum had a bloody nose at 
the World Cup match from a bludger hitting him in the face, 
obviously a broken nose, but his nose seems fine when he arrives 
at Hogwarts!  Could it be a time frame thing, if it is taken care 
of within a certain time frame it can be healed, or could it be 
the type of curse used?  I am curious to hear your 
opinions.

Karen L.