Mastitis: when to take antibiotics

Mastitis is inflammation in breast tissue, often during breastfeeding. It can cause a tender, warm or reddened area, swelling, and flu-like feelings. Milk flow can become uncomfortable, but continuing gentle feeding or expressing is often part of the plan unless a clinician advises otherwise. Antibiotics do not treat every episode of breast inflammation, so the decision depends on the examination, how long symptoms have lasted, and whether they are worsening.

Rest, drink fluids, and breastfeed or express in a way that feels manageable. Avoid forceful massage or suddenly stopping feeds, since both can aggravate swelling. A clinician may recommend pain relief that is suitable for you and your baby, then prescribe an antibiotic if infection is likely. Take prescribed doses as directed and check what to do if you miss one or develop diarrhoea, rash, or another reaction.

Arrange prompt medical advice for feverishness, rapidly increasing redness, severe pain, marked weakness, or symptoms that are not improving with supportive measures. Seek urgent care if you feel faint, confused, very unwell, or have trouble breathing. A persistent, soft or fluctuant lump can indicate an abscess and needs assessment rather than repeated pressure at home.

Ask whether your findings suggest inflammation, bacterial infection, or an abscess; whether the recommended medicine is compatible with breastfeeding; and when you should expect reassessment if the breast remains painful.