Exacerbation of existing skin lesions is characteristic of: (A) Lucio reaction, (B) Erythema nodosum leprosum, (C) Type 1 lepra reaction, (D) Jarisch hexhiemer reaction
Answer is C. 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