This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacterial infections, Subject name: Dental
Exacerbation of existing skin lesions is characteristic of 
Select and explain. 
A. Lucio reaction, B. Erythema nodosum leprosum, C. Type 1 lepra reaction, D. Jarisch hexhiemer reaction
C: Type 1 lepra reaction
Answer: C: Type 1 lepra reaction 
Explanation: 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