What condition can be exacerbated by body lice infestations?

Body lice infestations can lead to significant skin irritation, which creates an environment conducive to bacterial skin infections. When lice feed on human blood, they can cause scratching and inflammation in the skin. Continuous scratching to relieve itching can break the skin barrier, allowing bacteria that normally reside on the skin to penetrate and cause infections. This scenario is common with conditions involving compromised skin integrity, and body lice contribute to such skin disruptions.

In contrast, while psoriasis and eczema can be influenced by various factors, they are not directly linked to the exacerbation caused by body lice. Histamine intolerance primarily relates to metabolic issues rather than external parasitic infestations or skin infections. Thus, bacterial skin infections are the most relevant condition associated with body lice.