Dermatology Consultations Archive

Abdominal rash spreads to entire trunk: making the diagnosis

Abdominal rash spreads to entire trunk: making the diagnosis


A 23-year-old white female had one lesion on her lower abdomen that spread to a rash over her entire trunk.

Could exposure to herpes zoster actually help clinicians?

Could exposure to herpes zoster actually help clinicians? 


Herpes zoster represents the emergence of latent virus, specifically the varicella virus.

Tretinoin or adapalene?

Tretinoin or adapalene?


The main difference between adapalene and tretinoin is tolerability.

What is it about dialysis that improves psoriasis?

What is it about dialysis that improves psoriasis?

Does itching indicate healing?

Does itching indicate healing?

Is there science behind the saying that itching is a sign of healing in burn patients?

Is petroleum jelly toxic?

Is petroleum jelly toxic?

Petroleum jelly goes through vigorous purification processes to be considered noncarcinogenic.

Topical immunotherapy for alopecia areata

Topical immunotherapy for alopecia areata

Has squaric acid dibutylester (SADBE) been shown to be successful in managing alopecia areata?

Treatment options for women with facial hair

Treatment options for women with facial hair

What is the best, safest and most cost-effective treatment for women with excess body hair?

Hepatitis C and eczema

Hepatitis C and eczema


Several dermatologic manifestations of hepatitis C infection have been described.

Standard classification of dysplastic nevi

Standard classification of dysplastic nevi

What are the standard follow-up recommendations for different levels of dysplasias?

Determining when to lance a skin abscess

Determining when to lance a skin abscess

How do you know when to lance and pack an abscess?

Lab evaluation for pruritus

Lab evaluation for pruritus

How useful is blood work in finding the cause of unresponsive pruritus?

Antifungal therapy in the elderly

Antifungal therapy in the elderly

What is the best treatment option for an elderly man with a two-year history of onychomycosis?

Determining the cause of a refractory lip blister

Determining the cause of a refractory lip blister

A patient returns after acyclovir fails to resolve a fever blister on the lip. What's the next step?

Gluten-free diet or vitamin D supplementation for psoriasis?

Gluten-free diet or vitamin D supplementation for psoriasis?

Would it be beneficial to give suprapharmacologic doses of vitamin D3 in cases of severe psoriasis?

Onychomycosis diagnosis

Onychomycosis diagnosis

What is the most sensitive test to use when trying to diagnose toenail fungus?

Chronic use of OTC topical corticosteroids

Chronic use of OTC topical corticosteroids

Is there any danger of systemic effects from chronic use of OTC steroid creams and/or ointments?

Treating scrotal dermatitis

Treating scrotal dermatitis

What treatment do you recommend for scrotal dermatitis?

Acute renal failure related to topical acyclovir

Acute renal failure related to topical acyclovir

Is it common to see renal failure triggered by high doses of topical acyclovir?

How prevalent is vitamin D deficiency among Hispanics?

Should clinicians routinely check vitamin D levels in Hispanic patients as they do in others?

Safe periocular steroid use for eyelid dermatitis

Safe periocular steroid use for eyelid dermatitis

What kind of steroid cream is safe for dermatitis of the eyelid and periorbital area, and how long can it be used?

Is this rash related to terbinafine?

A patient taking terbinafine for onychogryphosis developed a fine pruritic rash over sun exposed body areas while on vacation. Could the drug be to blame?

Discoid lupus erythematosus laboratory follow-up

How often should blood tests be repeated to rule out systemic lupus erythematosus (SLE) in a patient positive for discoid lupus erythematosus (DLE)?

Can a gluten-free diet tame inflammation?

Is there a connection between celiac disease (CD) and inflammation?

Diagnosing scalp conditions

How can clinicians tell the difference between seborrheic dermatitis and scalp psoriasis?

Differentiating between types of intertriginious warts

Which type of human papillomavirus (HPV) is associated with nonmucosal, condyloma acuminatum-appearing warts found under the pannus in intertriginous areas?

New-onset alopecia in women

What is the appropriate workup in an otherwise healthy woman aged 75 years with new-onset hair loss?

Etiology of bilateral lower-extremity edema

Did a drug reaction cause bilateral lower-extermity edema in a patient with pityriasis rubra pilaris?

Treatments for granuloma annulare

A clinician contemplates dapsone for granuloma annulare. Should other treatments be considered?

Infectious vs. noninfectious perioral dermatitis

How does one differentiate between infectious and noninfectious perioral dermatitis in the absence of systemic symptoms?

When is it OK for a clinician to return to work after MRSA?

What treatment and/or confirmatory testing are required before a health-care professional who has been diagnosed with MRSA infection can resume working with patients?

Managing dermatitis

Are topical steroids appropriate for chronic psoriasiform dermatitis?

A young girl's painful rash

A six-year-old girl has been suffering from rashes on the face, chest, and trunk that occur for a week or two, then clear only to recur the next month.

Blisters on swollen ankles

What could be causing blisters in a 52-year old patient with no other symptoms and an unremarkable health history?

Raynaud's phenomenon and erythromelalgia symptoms

Can secondary lymphedema in a limb contribute to symptoms of Raynaud's phenomenon and/or erythromelalgia in the digits?

Overly aggressive response to cryotherapy accident

Could this case have been handled in a less invasive manner?

Best treatment for burn blisters

Is it best to remove intact blisters on new second-degree burns or leave them alone?

Fallout from a ruptured inclusion cyst

What causes an inclusion cyst to come to a head and rupture, and what effect does this have?

Skin tag removal

What is the best way to minimize scarring in the removal of skin tags? I find that cryotherapy results in...

Nail pitting causes

In addition to psoriasis, what other conditions cause nail pitting?

WHICH ANTIHISTAMINES HALT ITCHING?

Which antihistamine is most likely to be effective in the treatment of pruritic lesions—loratadine (Claritin), fexofenadine (Allegra), fexofenadine with pseudoephedrine...

RECALCITRANT PLANTAR WARTS

For the past six months I have been treating plantar warts on the foot of a 20-year-old woman. After two Histofreeze treatments, the warts appeared...

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