Fiberglass vs mineral wool (rockwool) dermatitis.

Fiberglass and rockwool dermatitis is usually due to a mechanical irritant reaction. When several members of a family are affected, scabies is often initially suspected. The irritant dermatitis may be complicated by an urticarial and an eczematous reaction which may mimic an allergic reaction clinically and histologically. Allergic reactions to added epoxy or formaldehyde resins may very rarely occur.