Choose the rational treatment for acute retromammar mastitis:
A. Opening of pus collection with radiar incision
B. Opening of pus collection with incision along submammar crinkle
C. Puncture of pus collection and irrigation of it with antiseptic liquids
D. Treatment with antibiotics in compliance with antibioticogramm and microflora
E. Retromammar blockades
Answer: B. Opening of pus collection with incision along submammar crinkle