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What to do in case of Deodorant Allergy

A deodorant allergy is an inflammatory reaction of the underarm skin, which can cause symptoms such as intense itching, blisters, red patches, redness or burning sensation.

Although some fabrics, especially synthetics such as lycra, polyester or nylon, can also cause underarm allergy, in most cases this irritation arises due to the deodorant used. This allergy happens because some deodorants may contain more irritating substances, such as perfumes, which can make the body develop an inflammatory response. See other causes for skin allergy.

Therefore, when the first symptoms of allergy appears, it is recommended you wash your underarms with abundant water and  neutral pH soap, to avoid aggravating the reaction, passing then a little soothing cream, with aloe vera, for example, to hydrate and soothe the skin.

What to do in case of Deodorant Allergy

Possible allergy symptoms

If you develop an allergy to deodorants usually one of the first symptoms that arises is a burning sensation and irritated skin, however, other symptoms include:

  • Red blisters or patches on the skin;
  • Lump in the underarm;
  • Very intense itching;
  • Redness.

In some cases, when the deodorant is not removed immediately, peeling, blistering or even burns may occur in the underarm.

In people with more sensitivity, there may even be more severe allergy symptoms, such as swelling of the face, eyes or tongue, feeling of something stuck in the throat or difficulty breathing. In these cases, it is advised to go to the hospital immediately to take an antihistamine and a corticosteroid directly into the vein, avoiding serious complications such as respiratory arrest.

Also see other problems that may cause red spots on the skin.

What to do in case of allergy

When symptoms of an allergy to deodorant arises, it is important to take action quickly, requiring:

  1. Washing the underarm with abundant water and neutral pH soap, in order to remove all the deodorant applied;
  2. Putting on the skin hypoallergenic or calming products, such as creams or lotions with aloe, chamomile or lavender, for example, soothe and moisturize the skin;
  3. Apply compresses of cold water on the underarms, to reduce the symptoms of irritation and burning sensation.

After washing and moisturizing the skin, it is expected that after 2 hours the symptoms will disappear altogether, if this does not happen or if the symptoms worsen, it is recommended that the dermatologist should be consulted as soon as possible.

However, if the symptoms develop into difficulty in breathing or feeling of something stuck in the throat, it is recommended you go to the hospital or emergency room quickly, as these are signs of an anaphylactic reaction, an allergy situation that needs urgent treatment.


The treatment for an allergy to a deodorant depends on the symptoms you present, and may involve the use of antihistamines like Loratadine or Allegra, or corticosteroid, such as Betamethasone. These remedies alleviate and treat allergy symptoms and should be prescribed by a dermatologist.

What to do in case of Deodorant Allergy

In cases where there is too much redness or itching in the underarms, ointments with antihistaminic properties may also be recommended, which help in relieving these symptoms.

How to confirm the diagnosis

The diagnosis of an allergy to a deodorant can be done by a dermatologist, who will observe your symptoms and see the state of your underarms, after applying the product. After this first examination, the doctor may ask for an allergy test to confirm the diagnosis and identify the component that is causing the allergy.

That way, in some cases it is possible to choose deodorants that do not contain compounds that cause the allergy, thus avoiding the appearance of this type of reactions.

To avoid allergy to a deodorant, it is important to always test the deodorant in a small area of the underarm, letting it act for a few hours, in order to check whether or not there is an unwanted reaction.

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