Hives (urticaria) are raised, usually itchy welts that can appear anywhere on the skin when the body releases histamine. Most cases are short-lived: individual welts rarely last more than 48 hours and the rash usually clears within a few days on its own, so it can often be managed at home. The mainstay of treatment is an oral antihistamine to calm the itch and rash; cases lasting longer than 6 weeks (chronic hives) or not responding to over-the-counter medicine should be assessed by a clinician. Hives accompanied by swelling of the face, lips, mouth, or throat, or any trouble breathing, is a medical emergency.
Available without a prescription — follow each label.
Cetirizine Zyrtec Second-generation (non-drowsy) oral antihistamine | A nonprescription option that relieves itching due to hives; less sedating than older antihistamines, so it is a practical first choice for daytime use. Per the Drug Facts label it relieves symptoms but will not prevent hives or an allergic skin reaction from occurring. The FDA has warned of a rare risk of severe itching after stopping daily long-term use (typically months to years). Read the label and follow dosing. |
Claritin Second-generation (non-drowsy) oral antihistamine | An OTC antihistamine for allergic symptoms, generally non-sedating, making it convenient for daytime relief of itch. Follow the Drug Facts label dosing and ask a pharmacist if symptoms persist. |
Fexofenadine Allegra Second-generation (non-drowsy) oral antihistamine | An OTC antihistamine in the same less-sedating class as cetirizine and loratadine, used to relieve itching from hives. Take as directed on the Drug Facts label; a pharmacist can advise if it is right for you. |
Diphenhydramine Benadryl First-generation (sedating) oral antihistamine | An older OTC antihistamine that relieves itch but commonly causes drowsiness and can impair driving or operating machinery, so it is often reserved for nighttime. The FDA has warned that taking higher than recommended doses can cause serious heart problems, seizures, or worse, so never exceed the Drug Facts label dose. Use with caution in children and older adults. |
A doctor may prescribe these — not for self-treatment.
Higher-dose / scheduled second-generation antihistamines Oral antihistamine (clinician-directed dosing) | For frequent or chronic hives a doctor may direct regular daily dosing or doses above the standard label amount. This above-label or scheduled use should only be done on a clinician's instruction, not self-started. |
Oral corticosteroids (e.g. prednisolone/prednisone) Systemic corticosteroid (short course) | A clinician may prescribe a short course of steroid tablets for a severe acute flare. These carry real side effects, are meant for brief use only, and must be prescribed and dosed by a doctor — never self-start or use someone else's prescription. |
Add-on therapies for chronic hives (e.g. anti-IgE biologic, leukotriene modifiers, or other immunomodulators) Prescription specialist medicines | When hives persist despite antihistamines, a doctor or dermatologist may add further prescription medicines. These require specialist assessment, monitoring, and a prescription; they are not available over the counter and should never be self-prescribed. |
Epinephrine (adrenaline) for anaphylaxis Emergency injectable (prescription / emergency use) | If hives occur with swelling of the throat/tongue, trouble breathing, or fainting, that is anaphylaxis and is a medical emergency. Epinephrine is the emergency treatment; people at risk are prescribed an auto-injector by a doctor. Use the prescribed device and call emergency services (911) — this is not an OTC purchase. |
Start by identifying and avoiding your trigger where possible — common ones include certain foods, medicines, insect bites, plants, temperature extremes, stress, and infections. For symptom relief, a non-drowsy second-generation oral antihistamine (cetirizine, loratadine, or fexofenadine) is the usual first choice and is fine for daytime; a sedating antihistamine such as diphenhydramine may help at night but causes drowsiness and should never be taken above the label dose. Pair medicine with simple self-care that MedlinePlus and the NHS suggest: cool compresses, loose clothing, and avoiding hot baths or showers, which can worsen itch. Be honest that evidence for any single "best" antihistamine is limited — they are broadly similar, and choice often comes down to drowsiness and personal response. A pharmacist can advise which OTC antihistamine suits you. If hives keep coming back, last beyond a few days, or are not controlled by OTC treatment, see a doctor rather than escalating doses on your own.
Call 911 / seek emergency care immediately if hives come with any of these: sudden swelling of the lips, mouth, tongue, or throat; trouble breathing, fast breathing, or wheezing; throat tightness or trouble swallowing; fainting or feeling about to pass out; or blue, grey, or very pale lips or skin — these can signal a life-threatening allergic reaction (anaphylaxis). Seek urgent (same-day) advice from a doctor if the rash does not start to improve after about 2 days, keeps spreading or coming back, is accompanied by fever, or you also have swelling under the skin. Book a routine doctor visit if hives last more than 6 weeks (chronic hives) or are not controlled by over-the-counter antihistamines, as you may need prescription treatment or referral to a dermatologist. Do not start or borrow prescription medicines (steroids, epinephrine, or others) on your own — get them prescribed.
General reference, not medical advice, and not a substitute for your doctor or pharmacist. The right choice depends on your symptoms, health conditions, age, and other medicines — always read each label and confirm before taking anything.
Menthol cream Generic / various Topical antipruritic (cooling agent) | A topical the NHS notes a GP may suggest and that is also sold OTC; the cooling sensation can ease itch on affected areas. It soothes symptoms only and does not treat the underlying reaction; combine with cool compresses and trigger avoidance. |