CLÍNICA VALORIAN

Skin diseases

Skin infections

Bacterial and viral skin infections: how to recognise and treat them.

13 resources

Patient guides

Shingles (herpes zoster)

Shingles (herpes zoster)

Shingles is the reactivation of the chickenpox virus and produces a painful rash with blisters on one side of the body. Learn about its causes, treatment, complications and the role of the vaccine in its prevention.

July 22, 2026
Genital herpes

Genital herpes

Genital herpes is a frequent sexually transmitted infection caused by the herpes simplex virus. Learn how it is transmitted, how to recognise the symptoms, what treatments exist and how to prevent new outbreaks and contagion.

July 22, 2026
Cold sores (herpes labialis)

Cold sores (herpes labialis)

Cold sores are a very frequent viral infection that causes painful blisters around the lips. Learn about their causes, triggering factors, antiviral treatment and how to prevent new outbreaks and contagion.

July 22, 2026
Subcutaneous abscess

Subcutaneous abscess

The subcutaneous abscess is an accumulation of pus under the skin caused by a bacterial infection. Learn about its symptoms, treatment, when it needs to be drained and how to prevent new episodes.

July 22, 2026
Boils (furuncles)

Boils (furuncles)

Boils are deep infections of the hair follicles that produce pain and accumulation of pus. Learn about their causes, treatment, prevention measures and when you should consult a doctor.

July 22, 2026
Folliculitis

Folliculitis

Folliculitis is an inflammation of the hair follicle that can be caused by bacteria, fungi or irritation. Learn why it appears, how it is diagnosed and which treatments help prevent new flare-ups.

July 22, 2026
Impetigo

Impetigo

Impetigo is a highly contagious superficial bacterial infection that causes characteristic yellow crusts. Learn about its causes, symptoms, treatment and how to avoid contagion.

July 22, 2026

Scientific news

Atopic dermatitis: skin barrier, microbiome and new treatments

Atopic dermatitis: skin barrier, microbiome and new treatments

Atopic dermatitis is now understood through three mechanisms: a fragile skin barrier (filaggrin), a disrupted microbiome (Staphylococcus aureus) and type-2 inflammation (IL-4, IL-13, IL-31). This understanding has enabled targeted treatments — dupilumab, tralokinumab, lebrikizumab, nemolizumab and JAK inhibitors — that transform the outlook for moderate-to-severe disease.

August 1, 2026

Frequently asked questions

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Related topics

AcneRosacea & couperosePsoriasisEczema & dermatitisVitiligoPigmentation & melasmaSkin cancerFungal infections
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