This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Surgery
Which of the following is the first line drug for mastitis? 
Select and explain. 
A. Cloxacillin, B. Cefazolin, C. Ampicillin, D. Metronidazole
A: Cloxacillin
Answer: A: Cloxacillin 
Explanation: * Breast abscess - More common in lactating females * M/C Organism - Staph. Aureus * Management - Incision and drainage + Anti-Biotics: Cloxacillin (or) Dicloxacillin (10- 14 day)