How long Does Eosinophilic Folliculitis last? The Answer

Eosinophilic folliculitis is identified with skin-colored or red bumps (papules) and pustules shaped like domes. The condition resembles other forms of folliculitis or acne. The bumps mostly occur on the face, neck, trunk, and scalp, and can persist for several months. Sometimes, urticarial lesions may also appear, which are larger wheal-like patches similar to those in urticaria. In rare conditions, soles and palms may also develop such pustules and papules. If the condition continues for too long, it may develop into dermatitis or prurigo, possibly due to excessive scratching and itching.

Infantile eosinophilic folliculitis

In infants, eosinophilic folliculitis is usually found on the scalp. However, they have also reportedly been detected on the child's trunk and extremities in some cases. We should note that cases of infantile eosinophilic folliculitis have reportedly been more treatable according to the Division of Pediatric Dermatology at the Children's Hospital Medical Center, Cincinnati, USA^[1], as the underlying causes will be different from adults. Furthermore, the prognosis in infants is generally better, with symptoms often resolving more quickly.

Patients suffering from eosinophilic folliculitis tend to develop sterile papules and pustules recurrently. Approximately 50% of the patients experience pruritus, probably with medium intensity. During the entire clinical course of the disease, the patient goes through multiple cycles of exacerbating and remitting symptoms. Depending on the individual condition, the skin lesions heal from a few months to as long as several years. The lesions are known to improve with antipseudomonal treatment procedures, but they may recur upon therapy cessation. Additionally, continuous monitoring and management are essential to prevent further complications and to control flare-ups.

Although cytokines, chemotactic factors, and intercellular adhesion molecules are associated with the activation of follicular sebaceous units, stimuli that exaggerate these changes are not known so far. Although the exact causes are unknown, it may be significantly linked with immune processes and immunodeficiency, particularly in HIV positive patients. Some theories also suggest that eosinophils gather around skin follicles to attack the sebum.

• The disease may be related to HIV infection and certain lymphomas.
• It is also linked to a number of drugs like allopurinol, carbamazepine, foscarnet, chemotherapeutic agents, timedium bromide, etc.
• Certain infections are also known to cause eosinophilic folliculitis, including hepatitis C virus infection, retrovirus, pityrosporum infection, larva migrans, dermatophyte infection, etc.
• The disease is associated with a number of medical conditions as well, including leukemia, atopy, polycythemia vera, myelodysplastic syndrome, sezary syndrome, and lymphoma.
• It may develop after a solid organ and bone marrow transplantation.
• It may be related to immune dysregulation in some patients.
• When it comes to infantile eosinophilic folliculitis, according to D.A Buckley from the department of Dermatology at the Royal Free Hospital in London, UK^[2], this condition can appear in neonates due to erythema toxicum neonatorum and other more rare conditions such as infantile acropustulosis and Langerhans' cell histiocytosis.

There are different processes to diagnose eosinophilic folliculitis, including:

• Blood test: This test is performed to identify an increase in the normal range of eosinophils in blood, along with an increase in IgE and a decrease in IgA and IgG.
• Skin biopsy: This test is used to identify eosinophils around the hair follicles.
• Clinical symptoms: Clinical diagnosis can be carried out as part of the initial assessment of the disease.
• CD4 lymphocytes: Patients suffering from HIV infection have low levels of CD4 lymphocytes, which are directly linked to the development of eosinophilic folliculitis.

In some cases, additional tests may be required to rule out other conditions that present with similar symptoms, ensuring a more accurate diagnosis.

Although eosinophilic folliculitis is a recurrent disease and may return after remission, there are certain treatment procedures that can help manage the condition:

• HIV infected individuals may benefit from HAART, short for Highly Active Anti-Retroviral Treatment.
• Anti-inflammatory medicines may be prescribed to reduce inflammation.
• Antibiotics may be used for secondary bacterial infections.
• Oral antihistamines may be indicated if your lesions occur along with severe pruritus.
• Topical creams, oral, and topical administration of indomethacin and naproxen are recommended to relieve symptoms.
• Anti-mite drugs like permethrin are recommended if there are mites in your hair follicles.
• Topical treatment with tacrolimus is helpful in suppressing the immune response.
• Phototherapy with UVB and UVA light is shown to give promising results.
• Corticosteroids, calcineurin inhibitors, colchicines, and retinoids are administered to relieve the condition and prevent it from recurring.
• Itraconazole may be prescribed as an antifungal medication to control the condition.

It is essential to follow medical advice closely and to regularly consult with healthcare professionals to adjust treatment plans as necessary. This ongoing care can help manage symptoms effectively and improve quality of life.

This article is merely informative, oneHOWTO does not have the authority to prescribe any medical treatments or create a diagnosis. We invite you to visit your doctor if you have any type of condition or pain.

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