Over-the-counter itch medicine: what to know

Itching may come from dry or irritated skin, eczema, an allergy, an insect reaction, or an infection. Atopic dermatitis often causes an itchy, inflamed rash, while crusting, oozing, or tenderness can signal a secondary skin infection. A product that calms itch does not necessarily treat the underlying cause.

Start with a fragrance-free moisturiser, short lukewarm washes, and cool compresses. A pharmacist can advise whether an oral antihistamine or a topical soothing product is suitable, especially for children, pregnancy, older adults, or anyone taking regular medicines. Follow the package directions, keep products away from eyes and broken skin unless labelled for it, and stop if burning or a new rash appears. Do not use leftover antibiotics for itch.

Seek urgent help for swelling of the lips or tongue, breathing difficulty, faintness, or a rapidly spreading rash. Arrange prompt review for fever, pain, warmth, pus, honey-coloured crusting, or itching that persists despite sensible care. A clinician may need to treat the cause with targeted therapy such as antibiotics for a skin infection or topical antibiotic therapy.

Ask what is causing the itch, which ingredients to avoid, how long to try a product, and whether another treatment is needed for inflammation or infection.