HONG KONG (Reuters) – Dust mites and cockroachallergens can weaken defence mechanisms of the human skin, makingit more permeable and vulnerable, a study in South Korea hasfound.

It is important, especially for people with eczema, to protectthemselves from such microscopic bugs and filth, researchers notein an article in the latest issue of the Journal of InvestigativeDermatology.

Cockroach allergens are particles of faeces, saliva and othermatter found on the bodies of these insects.

In the study, the researchers disrupted the skin barrierfunction of a group of volunteers by repeatedly sticking cellophanetape on a part of their forearm and then stripping it off. Theywere then exposed to roach allergens and dust mites.

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