Blinking Bug Bite

A flickering cutaneous lesion occurring after an insect bite

Many exaggerated skin reactions after insect bites have been described and due to global warming the incidence of these cases will increase. This clinical video promotes its recognition by showing an unusual cutaneous phenomenon after an insect bite.

Blinking Dermatitis: A Case Report

CASE REPORT

Quincke sign manifested on the wrist of a young healthy man. The patient had self-treated with topical antibiotics and steroids for a second-degree burn, but then developed contact dermatitis followed by cellulitis. He presented to the emergency department with a "blinking" effect of the skin lesion.

CONCLUSION

The "blinking" effect is the result of focal subcutaneous arterial dilatation in the zone of subcutaneous inflammation.