Hives Treatment in Australia: What Helps

What Are Hives (Urticaria)?

Hives — known medically as urticaria — are itchy, raised weals (welts) that appear on the skin and typically come and go. Individual weals often fade within 24 hours, but new ones can keep appearing elsewhere, so an outbreak can last longer. They can be pink, red or skin-coloured, range from a few millimetres to large patches, and may join together. According to the Australasian Society of Clinical Immunology and Allergy (ASCIA), hives are common, affecting around one in five people at some point in their lives.

Hives happen when cells in the skin called mast cells release histamine, which makes small blood vessels leak fluid into the skin, forming the raised, itchy weal. This is why antihistamines — medicines that block histamine — are the mainstay of treatment. Sometimes deeper tissues swell too, causing puffiness of the eyelids, lips, hands or feet; this deeper swelling is called angioedema.

What Causes Hives?

One of the most frustrating things about hives is that a specific cause is often never found. Better Health Channel (Victoria) notes that in most cases hives are not due to an allergy, and in chronic hives a trigger is rarely identified. When a trigger can be pinned down, common ones fall into a few groups.

• radio_button_uncheckedAllergic reactions — foods (such as nuts, shellfish, eggs or milk), insect stings, latex, or medicines like antibiotics.
• radio_button_uncheckedInfections — viral infections (including common colds) are a frequent trigger, especially in children.
• radio_button_uncheckedPhysical triggers — heat, cold, pressure on the skin, sunlight, exercise or sweating can each bring on hives in susceptible people.
• radio_button_uncheckedMedicines — aspirin, non-steroidal anti-inflammatory drugs (NSAIDs) and codeine can aggravate hives in some people.
• radio_button_uncheckedStress — emotional stress can worsen or trigger an outbreak.
• radio_button_uncheckedNo identifiable cause — in many cases, particularly chronic urticaria, no trigger is ever found. This is called spontaneous urticaria.

How to Treat Hives: Over-the-Counter Options

Antihistamines remain the treatment of choice for hives, and Australian guidance — including Australian Prescriber and ASCIA — favours the newer non-sedating types. These are available over the counter at pharmacies such as Chemist Warehouse, Priceline Pharmacy, Amcal and Terry White Chemmart, as well as many supermarkets.

Non-drowsy antihistamines (first-line)

Non-drowsy antihistamines are the standard starting point because they relieve itch and reduce weals without causing much sedation. The three most common active ingredients in Australia are loratadine (brand Claratyne), cetirizine (Zyrtec) and fexofenadine (Telfast). They are usually taken once a day. If a standard dose is not controlling symptoms, a GP may advise increasing the dose — ASCIA notes higher-than-standard doses are sometimes needed for hives — but you should only do this on medical advice, not on your own.

Sedating antihistamines (occasional night-time use)

Older sedating antihistamines, such as promethazine (Phenergan), can cause drowsiness. They are generally not recommended for routine daytime use, but a pharmacist may occasionally suggest one at night if itching is severe enough to disturb sleep. Because they cause drowsiness, do not drive or operate machinery after taking them, and check with your pharmacist before combining them with other medicines.

Comparing Non-Drowsy Antihistamines for Hives

All three common non-sedating antihistamines are effective options, and the best choice is often the one that works for you and that you tolerate well. This table summarises the practical differences.

Popular Non-Drowsy Antihistamines in Australia

These are widely stocked across Australian pharmacies. Prices vary between retailers and pack sizes, so it is worth comparing cost per tablet — pharmacy own-brand versions of the same active ingredient are often cheaper.

Home Remedies and Self-Care That May Help

Alongside an antihistamine, simple self-care can ease the itch while an outbreak settles. Allergy & Anaphylaxis Australia and Better Health Channel both recommend cooling and trigger avoidance as sensible first steps.

• radio_button_uncheckedApply a cool compress — a damp cloth or an ice pack wrapped in a tea towel held on the area for 10 to 15 minutes may reduce itch. Do not apply ice directly to skin.
• radio_button_uncheckedTake a cool or lukewarm shower or bath — a colloidal oatmeal bath can also soothe skin. Avoid hot water, which can make hives worse.
• radio_button_uncheckedWear loose, cool cotton clothing — tight or heavy clothing and overheating in bed can aggravate weals.
• radio_button_uncheckedAvoid known triggers — if you have noticed a pattern (a food, heat, pressure or a medicine like aspirin), steer clear of it.
• radio_button_uncheckedSkip fragranced soaps and harsh skincare, and try not to scratch, as scratching worsens the itch-scratch cycle.

Acute vs Chronic Hives: When to See a GP

Most hives are acute, meaning they come on suddenly and clear within hours to a few days, and rarely last more than a few weeks. Acute hives can usually be managed at home with an over-the-counter antihistamine and self-care.

When hives appear most days of the week for more than six weeks, they are described as chronic urticaria. ASCIA notes this pattern warrants review by a GP, who may recommend higher-dose antihistamines, run tests, or refer you to an immunologist or dermatologist. For persistent chronic hives that do not respond to antihistamines, doctors may prescribe additional medicines such as immune-modulating treatments. See your GP if hives keep returning, disturb your sleep, or are not controlled by a standard antihistamine dose.

If a person has been prescribed an adrenaline autoinjector (such as an EpiPen) and shows these signs, use it straight away and then call 000. Anaphylaxis is a medical emergency — do not wait to see if symptoms settle on their own.

What to Avoid When You Have Hives

• radio_button_uncheckedHeat and overheating — hot showers, saunas, vigorous exercise and warm bedding can all worsen the itch.
• radio_button_uncheckedAspirin and NSAIDs — medicines like aspirin and ibuprofen can aggravate hives in some people; ask your pharmacist about alternatives such as paracetamol if you need pain relief.
• radio_button_uncheckedAlcohol and spicy foods — these can dilate blood vessels and make weals more noticeable in some people.
• radio_button_uncheckedTight clothing — pressure on the skin can trigger fresh weals in people with pressure-related hives.

FAQ

What is the fastest way to relieve hives?

The quickest practical relief for most people is a non-drowsy oral antihistamine such as cetirizine (Zyrtec), loratadine (Claratyne) or fexofenadine (Telfast), which start to ease itching within roughly an hour. Adding a cool compress and avoiding heat can help while the medicine takes effect. There is no instant fix — hives generally settle in their own time — but antihistamines can meaningfully reduce the itch and number of weals.

Which antihistamine is best for hives in Australia?

There is no single best antihistamine for everyone. Australian guidance favours the non-sedating types — loratadine (Claratyne), cetirizine (Zyrtec) and fexofenadine (Telfast) — over older drowsy ones. Fexofenadine is the least likely to cause drowsiness, while cetirizine tends to be fast-acting. The best choice is usually the one that controls your symptoms and that you tolerate well. If a standard dose is not enough, speak to your pharmacist or GP rather than increasing the dose yourself.

Will Zyrtec (cetirizine) clear up hives?

Zyrtec (cetirizine) is a non-drowsy antihistamine commonly used to relieve the itch and reduce the weals of hives, and many people find it helpful within an hour or so. It manages the symptoms rather than resolving the underlying cause, so hives can return once the medicine wears off if the trigger is still present. If your hives persist for more than six weeks or are not controlled by a standard dose, see your GP.

What should you avoid doing when you have hives?

Avoid anything that adds heat or irritation to the skin: hot showers, saunas, vigorous exercise, tight clothing and scratching. It is also sensible to avoid aspirin and anti-inflammatory painkillers (NSAIDs) where possible, as they can aggravate hives in some people, and to steer clear of any food, medicine or trigger you have previously reacted to. Cooling the skin and wearing loose cotton clothing are more helpful than warmth.

What is your body lacking when you get hives?

Hives are not usually caused by a nutrient deficiency — they result from mast cells releasing histamine in the skin, often triggered by allergy, infection or a physical factor, and frequently with no identifiable cause. Some research has explored a link between low vitamin D and chronic hives, but this is not established as a cause and taking supplements is not a proven treatment. If you have persistent hives, a GP can assess whether any investigations are worthwhile.

Can hives be treated permanently?

Most acute hives resolve on their own within days and do not come back. Chronic hives can be harder to control, and while there is no permanent fix, they often settle over months to a few years, and symptoms can usually be well managed in the meantime with antihistamines and, where needed, prescription treatments. Identifying and avoiding a trigger, where one can be found, is the most reliable way to reduce future outbreaks.