This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Skin
A 9 year-old has multiple itchy erythematous wheals all over the body for 2 days. There is no respiratory difficulty. Which is the best treatment? 
Select and explain. 
A. Antihelminthics, B. Systemic coicosteroids, C. Antihistamines, D. Adrenaline
C: Antihistamines
Answer: C: Antihistamines 
Explanation: C i.e. Antihistamines