<prompt> Exacerbation of existing skin lesions is characteristic ofLucio reactionErythema nodosum leprosumType 1 lepra reactionJarisch hexhiemer reaction  <response>: Type 1 leropsy reaction is characterised by exacerbation of preexisting lesions.there will be erythema , odema, tenderness over the previous leprosy patches. Sometimes lesions may ulcerate in severe type 1 reaction iadvl textbook of dermatology page 2046 