This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Dermatitis, Subject name: Dental
Drug causing erythroderma are all except - 
Select and explain. 
A. Phenytoin, B. Penicillin, C. Gold, D. Carbamazapine
B: Penicillin
Answer: B: Penicillin 
Explanation: <p>ERYTHRODERMA:- Erythema and scaling involving more than 90% of the body surface area. When scaling is the predominant feature-exfoliative dermatitis. Etiology:- 1. Pre existing skin disease-psoriasis,lichen planus,contact dermatitis,seborrheuc dermatitis,crusted scabies. 2. Drugs- Allopurinol,Dapsone,Gold,Nifedipine,Sulpha drugs,isoniazid , carbamazepine,phenobarbital,minocycline.etc. 3. Malignancy-lymphoma,leukemia. 4. Idiopathic. Clinical features- Widespread erythema and scaling involving more than 90% of body surface. Fever with chills. Diffuse hair loss and nail dystrophy. Nail shedding. Treatment: Fluid and electrolyte balance. Replenishment of protein and iron. Treatment of underlying disease. {Reference: IADVL textbook of dermatology, vishalakshi Vishwanath pg no.311.}</p>