A practitioner should take a patient's history and focus on the following:

• Onset and distribution of lesions
• The severity of pruritus (e.g., keeping patient awake at night)
• Family and/or personal history of the atopic triad
• Presence of contact allergens
• The presence of triggers including allergens (e.g., dust mites, animal dander), hot showers/sweating, soaps, fragrances, food hypersensitivities, and synthetic fabrics such as polyester.

Classic physical exam findings depend on age group. Infants develop edematous papules and plaques that may have vesicles or crust on the scalp, face, and extensor extremities. Infants rarely have atopic dermatitis lesions affecting the diaper area but may be susceptible to other causes of diaper dermatitis such as candida or seborrheic dermatitis. Atopic dermatitis children classically have less exudative patches and plaques on antecubital and popliteal fossae; adults have chronic lichenified (enhanced skin markings) lesions that have a predilection for hands. Individual lesions may also be further classified into acute (edematous, erythematous papules and plaques and/or vesicles/crusting), subacute (erythema, scale, variable crusting), or chronic (thick plaques with lichenification and scale) stages.

Atopic dermatitis is typically a clinical diagnosis given the classic distribution of lesions in each age group. The presence of associated findings (e.g., keratosis pilaris) may facilitate diagnosis. A biopsy will show an eczematous pattern. In childhood cases that are recalcitrant to treatment, fluorescent enzyme immunoassays or skin prick testing can be performed to detect immunoglobulin E (IgE) antibodies against specific allergens, which may or may not be a clinically relevant exacerbating factor.[8][9]

The four major components of treatment include trigger avoidance, daily skin care, anti-inflammatory therapy, and other complementary modalities.

Daily skin care includes the application of emollients twice daily, with the application within three minutes of exiting lukewarm shower or bath to prevent skin drying. Ointments are the most occlusive but may be more greasy. Topical steroids, which should be applied before emollients to "lock-in" their effect, are first-line agents for acute flares. The potency should be strong enough to control a flare quickly, and consideration should be given for tapering every other day and for maintenance therapy twice weekly (e.g., weekends) in the usual areas of involvement. Reversible side effects of steroid use include skin atrophy and telangiectasia.

Sensitive areas (including the intertriginous areas of the axilla and groin, in addition to the face) may require topical nonsteroidal agents including calcineurin inhibitors such as tacrolimus and pimecrolimus. Newer non-steroidal agents include crisaborole, which exerts its effect by blocking PDE-4. When atopic dermatitis is not controlled with topical agents, systemic agents include phototherapy (ultraviolet (UV) A, UVB, and narrow-band UVB), cyclosporine, azathioprine, mycophenolate mofetil, and methotrexate.

 A newly FDA-approved biologic therapy is dupilumab, which is a monoclonal antibody that blocks the IL-4 receptor and thus the effect of IL-4 and IL-13.  Other complementary therapies include bleach baths (0.5 cup bleach in full 40 gallon tub) one to two times weekly to decrease S. aureus colonization, low allergen maternal diets during breastfeeding, and probiotic and prebiotic use in pregnant mothers and at-risk infants which has shown 50% decreased frequency of atopic dermatitis at ages 1 to 4 years old compared to placebo.[10][11][12]

Recently Crisaborole topic ointment was approved for mild to moderate AD. The drug is a phosphodiesterase inhibitor and shown to improve skin symptoms.

Some patients may benefit from probiotics; it is believed that the bacterial products may enhance the immune system and prevent the development of allergic IgE antibody response. Further, probiotics are recommended during pregnancy and in breast feeding women.

Numerous studies show that bleach baths may help relieve the symptoms of AD by lowering the risk of superinfection with bacteria.

• Allergic contact dermatitis
• Lichen simplex
• Lichen planus
• Psoriasis
• Scabies
• Tinea
• Seborrheic

Guidelines on the use of cyclosporine

1. Cyclosporine has been approved for use in AD under the following conditions:
2. The patient is older than age 16
3. Continuous treatment is only done if appropriate monitoring is undertaken
4. Intermittent doses of up to 16 weeks are recommended in most patients
5. The dose should be titrated to lower renal toxicity
6. If hypertension develops, the dose should be reduced or discontinued
7. If an infection develops, reduce the dose of cyclosporine and manage the infection
8. All patients should be educated about symptoms of infections and when to seek help
9. Patients need to be monitored for nonmelanoma skin cancer
10. Cyclosporine should not be used at the same time as phototherapy
11. Monitor serum lipid levels

Overall, many patients with AD do improve with time. However, at the same time patients with AD may also have allergic rhinitis and asthma, which may not improve. In most cases of childhood-onset AD, the disorder persists for decades. The condition has relapses and remissions; relapses often require the use of medications. Individuals who are continuously exposed to smoke, tobaccos, pet dander, fumes, pollen, soap, detergent, and wool will have continual symptoms and the overall quality of life is poor.

Persistent and recurrent itching not only is irritating but is costly to manage. A well-known complication of AD is Kaposi varicelliform eruption,  that is linked to a primary herpes infection. The vesicular lesions appear in the eczematous area and can quickly spread to healthy skin. Treatment with acyclovir can help lower the morbidity.

Patients with AD are also prone to skin infections with Staphylococcus and streptococcus.

• Kaposi varicelliform eruption
• Bacterial infection
• Uriticaria

Patients should wear cotton garments and avoid wool. In addiion, the temperature in the home should be on the cooler side as it may help decrease sweating and itching. A humidifier is recommended to prevent drying of the skin. Foods that trigger AD symptoms should be avoided.

Treatment and management of atopic dermatitis should start with education of the patient and/or parents of the chronic nature of the disease and importance of maintenance therapy, which improves the epidermal barrier and prevents sensitization to allergens and possible prevention of atopic dermatitis.

Atopic dermatitis is a chronic skin disorder that can adversely affect the quality of life. While the condition can be managed with medical therapy, there are also non-medical remedies that can make a big difference in the quality of life. Both the pharmacist and nurse can play a vital role in educating the patient on nonmedical remedies to manage atopic dermatitis. The patient should be educated on wearing soft clothing- preferably cotton and avoid wool. The home temperatures should be kept low because the heat can cause sweating and exacerbation of the irritation. A humidifier should be used to prevent dryness in the home. All garments should be washed with a mild detergent with no fabric softener or bleach. When going outdoors, ample sunscreen and moisturizer should be applied. The patient should keep a diary of all the foods and avoid foods that trigger the attacks. The patient should avoid activities that cause excess diaphoresis. Finally, patients who have asthma should be compliant with their medications and avoid allergens.[13][14] (level II)

Outcome

The majority of patients with atopic dermatitis do improve with age. About 30% of patients will develop allergic rhinitis, and 30% will develop asthma. A long-term study that evaluated patients with Atopic Dermatitis indicates that mild to moderate symptoms often persist for a decade or more. And about 80% of these patients will need topical medications to control the symptoms. Symptoms relief is usually seen after the 2nd decade of life, but this also means a drastic change in lifestyle that includes avoiding all triggers like tobacco, pet dander, wool, and certain soaps. Atopic dermatitis may not be life-threatening, but it can seriously affect the quality of life. The constant dryness and itching of skin not only leads to a high financial burden and often requires multiple hospital visits. [1][15](Level V)