Louis Glick
Louis Glick asked Garon Whited:

This question contains spoilers… (view spoiler)

Garon Whited The ring fused into his hand was only somewhat useful, being caused by an unpredictable effect. Duplicating it could be problematic. However, implanting a gem or other object inside himself is worse; his body tends to reject anything not "native" when sunrise or sunset rolls around.
As for blocking the light of the sun, that may well be possible. There are a few reasons for not doing it: Routinely trusting his life to a magical effect seems more adventurous than he might like. Also, who said it was the actual light that caused him to combust? What happens if he develops a solar filter and discovers it creates a perfect darkness--but doesn't block whatever quasi-mystical force actually does the damage? And then there's the reliability question. He spends a lot of time in low-magic zones, so his sun filter might not charge completely between uses.
Regardless--even with a cleaning spell--he's still going to want someplace private to do his sweating. It's not subtle. At best, an observer will think he's extremely ill. He may as well do it somewhere dark.

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