Enc.: varies	IS: metal, hard	Aura:	XP: 4400	GP: 22k
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Swords	-	Magic Items	-	DMG

Sword of Wounding is a sword of only + 1 bonus, but any hit it makes cannot
be healed by regeneration, and the opponent so wounded loses 1 additional
HP per round for each wound inflicted by the sword on the
round after such a wound is received.

Thus,' an opponent hit for 4 points of
damage on the 1st melee round will automatically lose 1 additional HP on the 2nd and each successive round of combat.
Loss of 1 point stops
only when the creature so wounded bandages its wound or after 10 melee
rounds (1 turn). Damage from a sword of wounding can be healed only by
normal means (rest and time) - never by potion, spell, or other magical
means short of a wish. Note that successive wounds will damage in the
same manner as the first.

<remember that the WSG bleeding rules (Major Wound) may apply in addition to this>
 

Question: Would a Periapt of Wound Closure heal or allow the healing of damage caused by a Sword of Wounding?

Answer: No. Only time and rest or a Wish will heal a wound caused by a Sword of Wounding.
(Correction: Use of the Healing proficiency, and, possibly, various herbs, will aid in healing the damage caused by a Sword of Wounding.)