New impetigo spots after antibiotics

Fresh blisters or crusts may mean the infection is still active, that bacteria have spread to nearby irritated skin, or that the medicine has not been used as intended because of vomiting, missed doses or difficulty applying it. It may also be a different rash. New lesions should not be judged from photographs alone. Note when each spot appeared, where it is, whether it is painful or itchy, and whether fever or other symptoms are present.

Contact the prescriber or GP and explain when the new spots started in relation to treatment. Continue the prescribed medicine unless a clinician tells you to stop, but do not add leftover creams or tablets. Wash hands, gently cleanse sores, keep them covered when practical, and use separate towels and bedding. Avoid school, childcare, sport or close contact according to the advice given for the treatment and the condition of the sores.

Seek urgent care if redness is rapidly spreading, the skin is hot and very painful, swelling reaches the eye or face, or there is fever with unusual sleepiness or weakness. Breathing trouble, inability to swallow, or signs of dehydration require immediate attention.

Ask whether the new lesions still look like impetigo, whether a swab or alternative treatment is appropriate, and how to protect other people while the spots are active.