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Hives on the arms: causes and treatment

by Alivia Nyhan
Published: Last Updated on

You may be startled when you notice that hives suddenly appeared on your arms. Fortunately, this does not indicate a severe illness, except that it is a rather uncomfortable symptom for the person presenting it.

There are several causes for these hives to appear on the arms. This includes the presence of typical pimples or blackheads, allergic skin reactions, folliculitis, or keratosis. The doctor will be the one to determine through a review the triggering cause of these hives, also indicating the necessary treatment according to the manifestation of other possible symptoms that accompany said packs.

If you want to know more about this topic, we invite you to continue reading this FastlyHealarticle about hives on the arms: causes and treatment.

Hives on the arms from pimples

The pimples, blackheads, or pimples are nothing more than the accumulation of fat that clogs the follicle. This is usually quite unsightly, especially since they tend to leave marks and welts that are pretty visible and annoying.

It is common for it to manifest itself during adolescence due to the multiple changes in our body, especially the hormonal changes that lead to the overproduction of sebum.

The increase in sebum or fat tends to be stored in the most superficial layer of the skin, which leads to pimples or blackheads that, if not treated properly, can leave the traditional hives on the arms or anywhere on the body.

See more information in Pimples on the arms: causes and how to eliminate them.

Hives on the arms from keratosis pilaris

In addition to hives on the arms from pimples, those caused by keratosis pilaris are among the most common reasons for this condition. It is a harmless but quite common condition; Unfortunately, it is often considered a variation of normal skin since it cannot be fully cured. It is common to have hives on the upper arms if you suffer from keratosis pilaris. They usually do not itch or hurt.

Keratosis pilaris is caused by the accumulation of keratin, although it is unknown exactly why it accumulates. Keratin usually protects the skin from harmful substances. Still, if you suffer from keratosis, this protein clogs the hair follicle and creates a plugin that causes the skin to become rough, bumpy, and uneven.

A 2015 study from Guayaquil demonstrated the prevalence of keratosis pilaris in patients with atopic dermatitis, estimating that approximately 40% of the adult population suffers from this disease. According to this study, keratosis pilaris has a particular preference in the distal third of the upper extremities.

Other causes of hives on the arms

In addition to those mentioned above, there are other reasons that you should know why you may have hives on your arms. Among them are folliculitis and allergic reactions.


The folliculitis is usually triggered after shaving hair removal and after the use of clothing adjusted. All of this makes hair growth difficult.

Consequently, those little balls and welts may appear on the arms and all those areas that are depilated. This is more common to occur in males.

Allergic reactions

Allergic reactions also usually leave hives on the skin of the arms. This is due to the intense itching that this type of situation generates. Allergies are often triggered by consuming some food or drink, medications, being in contact with animals, and even the same clothing.

A skin allergy can appear in the form of rashes on the arms and lead to hives.

Other factors that can leave hives on the arms are:

  • Exposure to environmental factors such as the sun, cold, and heat.
  • Stress.
  • Insect bites.
  • Existence of previous pathologies.
  • Consumption of chemical agents.
  • Immune disorders.

Treatment for hives on the arms

Treatment of hives on the arms will depend directly on the cause. Among the recommendations:

  • Wear cool clothing, so your skin breathes freely.
  • Avoid doing peels until you know what it is.
  • Apply body creams that hydrate the skin, especially those based on glycolic acid or salicylic acid.
  • Avoid squeezing the blackheads or pimples.
  • If you suffer from oily skin, wash your skin well and apply products that minimize or control sebum production.
  • To treat allergic reactions, the specialist usually indicates oral antiallergics in mild cases and, in severe cases, injected medication will be necessary for the emergency room.
  • Avoid taking hot showers, as this increases itchiness.

The medical evaluation will be essential to determine why you have hives on your arms and thus establish an individualized treatment.

You may be interested in the article Itchy red spots on the skin: causes and treatment.

This article is merely informative. At FastlyHeal .com, we do not have the power to prescribe medical treatments or make any diagnosis. We invite you to see a doctor if you present any condition or discomfort.

If you want to read more articles similar to Hives on the arms: causes and treatment, we recommend that you enter our Skin, hair, and nails category.

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