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The iconic Instant Radiance Duo to welcome spring with a radiant complexion.
Your skin evolves; your routine should, too. Take your diagnostic.
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The iconic Instant Radiance Duo to welcome spring with a radiant complexion.
A fresh, radiant complexion — the Hydration & Radiance Duo, a spring essential.

A fresh, radiant complexion — the Hydration & Radiance Duo, a spring essential.

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Allergies and Antihistamines

Skin allergies are reactions of the skin to substances called allergens, which can cause itching, redness, or rashes. Learn how to identify the causes and choose appropriate treatments to prevent and relieve these reactions.
Peau sensible, réactive, allergique ou intolérante : existe-t-il une différence ?
Sensitive, reactive, allergic, or intolerant skin: is there a difference?
Read
Peau sensible et peau allergique : quelles différences et comment en prendre soin ?
7 min of readingSensitive skin and allergic skin: What are the differences and how to care for them?
Que signifie la mention "hypoallergénique" sur un produit cosmétique ?
4 min of readingWhat does the term "hypoallergenic" mean on a cosmetic product?
FAQ about allergies and antihistamines

How does a skin allergy manifest?

The symptoms of an allergy include itching, redness, skin rashes, and sometimes blisters.

What are the most common cosmetic allergens?

Fragrances, essential oils, preservatives, and metals are among the most common cosmetic allergens.

What is the difference between a skin allergy and irritation?

A skin allergy involves an immune response, whereas irritation is a non-allergic reaction of the skin to irritating substances.

Can a hypoallergenic product cause a skin allergy?

Yes, even though hypoallergenic products are formulated to limit the risk of skin allergy, it remains possible.

Are cosmetic allergies hereditary?

Yes, there is frequently a genetic component in skin allergies. Indeed, these are often due to a hypersensitivity of the immune system.

What are the different types of antihistamines?

The main antihistamines used are H1 antihistamines for allergies and H2 antihistamines for gastric disorders, but H3 and H4 antihistamines also exist.

What are the most commonly used antihistamines?

Loratadine, cetirizine, and fexofenadine are among the second-generation antihistamines most commonly used.

Do antihistamines cause drowsiness?

The first-generation antihistamines, such as diphenhydramine, can cause drowsiness, but this side effect is very rare with second-generation agents.

Can you take antihistamines without a prescription?

Some antihistamines are available over the counter, but it is advisable to seek guidance from a physician or pharmacist.

Can antihistamines be used during pregnancy?

It depends on the specific antihistamine, but some can be used by pregnant women. The most important thing is to consult your doctor beforehand.

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