Take a detailed history of the home environment, work conditions, and domestic animals. The bites of the bed bug are painless, but pruritus and purpuric macules may appear. Papules, wheals, or bullae may predominate together with signs of secondary infection. A hemorrhagic puncta may be evident. If a person is not sensitized, no symptoms may be evident, only a purpuric macule at the bite site.
Old furniture makes an excellent home for bedbugs.
They also like to hide in the seams and folds of mattresses and in bed frames and springs. Most reactions to bedbugs show a superficial and deep perivascular infiltrate containing mixed cells with eosinophils rather than neutrophils being prominent. Eosinophils may be prominent among collagen bundles, or may be absent. Medical care depends on the clinical picture. Bedbug bites usually do not require any treatment.