Which is better for boils: amoxicillin or cloxacillin?

Cloxacillin. Boils are usually caused by staphylococcus aureus. Over 90% of s.Aureus are resistant to Amoxicillin while depending on the local amount of mrsa, cloxacillin will be active against 60-70% of s.Aureus. All MRSA will be resistant to both these drugs. Mrsa is usually treated orally with septra/bactrim, Doxycycline or clindamycin.