Condition guide
Allergic Rash
Itchy, red skin rash causing discomfort? Find the right antihistamine or topical treatment for your allergic skin reaction.
Find the right medicineTreatment and relief options
- Oral antihistamines for itching and hives
- Hydrocortisone cream (1%) for localised rash; avoid face unless directed
- Calamine lotion for soothing relief
- Avoid scratching to prevent infection
- If prescribed an adrenaline autoinjector, use immediately for anaphylaxis symptoms and call emergency
- Identify and avoid trigger allergens
See a doctor or pharmacist if…
- Difficulty breathing, swelling of face/throat, or signs of anaphylaxis: use adrenaline autoinjector if available and call emergency immediately
- Rash spreading rapidly
- Blistering or peeling skin
- Fever with rash
- Rash after new medication
Frequently asked questions
Oral antihistamines (cetirizine, loratadine) work best. Avoid triggers if known.
Related conditions
Related guides
Allergy & hayfever13 min read
Hydrocortisone Cream Australia: Uses, Safety & Best Brands
Hydrocortisone cream may help relieve itching and inflammation from mild eczema, bites and rashes. Compare Sigmacort, DermAid and generic options in Australia.
Skin, wound & sun care9 min read
Ringworm (Tinea) Treatment in Australia: Best Antifungal Creams & How to Use Them
How to treat ringworm and tinea in Australia: which OTC antifungal cream to choose, how long to keep using it, hygiene to stop the spread, and when to see a GP.
Skin, wound & sun care4 min read
Insect Bites & Stings: Treatment & Prevention Guide (Australia)
How to treat and prevent everyday mosquito, sandfly and ant bites in Australia — repellents that work, itch relief options, and infection warning signs.
Medical disclaimer
This information is general in nature and isn’t a substitute for professional medical advice. Always read the label and follow the directions for use. Talk to your pharmacist or doctor about what’s right for you.