<unk>  or<unk>  chronicum migrans is an expanding rash often seen in the early stage of Lyme disease, and can also (but less commonly) be caused by southern tick-associated rash illness (STARI). It can appear anywhere from one day to one month after a tick bite. This rash does not represent an allergic reaction to the bite, but rather an actual skin infection of one of the Lyme bacteria species from the genus Borrelia. The rash's name comes from New Latin for "migrating redness".
Erythema migrans
Cutaneous larva migrans
Lichenoid eruption
Streptococcal intertrigo
Granuloma faciale
Acneiform eruption
Erythema nodosum
Papular eruption of blacks