From the NFHS handbook:
ART. 3 . . . If a participant is suspected by the referee or coach of having a -
communicable skin disease or any other condition that makes participation appear
inadvisable, the coach shall provide current written documentation as defined by the
NFHS or the state associations, from an appropriate health-care professional stating that
the suspected disease or condition is not communicable and that the athlete's
participation would not be harmful to any opponent. This document shall be furnished at
the weigh-in for the dual meet or tournament. The only exception would be if a
designated, on-site meet appropriate health-care professional is present and is able to
examine the wrestler either immediately prior to or immediately after the weigh-in.
Covering a communicable condition shall not be considered acceptable and does not
make the wrestler eligible to participate.
ART. 4 . . . If a designated, on-site meet appropriate health-care professional is present,
he/she may overrule the diagnosis of the appropriate health-care professional signing
the medical release form for a wrestler to participate or not participate with a particular
ART. 5 . . . A contestant may have documentation from an appropriate healthcare
professional only indicating a specific condition such as a birthmark or other noncommunicable
skin conditions such as psoriasis and eczema, and that documentation is
valid for the duration of the season. It is valid with the understanding that a chronic
condition could become secondarily infected and may require re-evaluation.
--So as in this case, there was a doctor note prior to the season starting of such known condition. And a secondary doctor's note for re-evaluation prior to post season. He was cleared during skin checks by the head official.