In the management of mastitis in a lactating mother, the primary goal is to effectively treat the infection caused by common bacteria such as Staphylococcus aureus. The first-line treatment involves the use of antibiotics that target gram-positive bacteria. Among the options provided:
- Dicloxacillin
- Cefazolin
- Ceftriaxone
- Ampicillin
Dicloxacillin is the recommended first-line treatment. It is a penicillinase-resistant penicillin, making it effective against penicillin-resistant strains of staphylococci. This makes it the preferred choice for treating mastitis, as it targets the typical causative pathogens efficiently.