Skin infections are commonly caused by bacteria, viruses, fungi, or parasites and can range from mild to severe. Proper diagnosis and treatment are essential for recovery and preventing spread.
Causes:
- Bacterial Infections: Such as cellulitis, erysipelas, impetigo, and folliculitis, often caused by Staphylococcus or Streptococcus species.
- Viral Infections: Including herpes simplex, varicella-zoster (chickenpox and shingles), and warts.
- Fungal Infections: Like athlete’s foot, ringworm, thrush
- Parasitic Infections: Scabies and lice are common examples.
Diagnosis:
- Clinical Examination: Assessing the appearance, location, and distribution of lesions.
- Culture and Sensitivity Tests: To identify the causative organism and appropriate antibiotics for bacterial infections.
- Skin Scraping or Biopsy: For fungal infections or uncertain diagnoses.
- Blood Tests: In cases of severe or systemic infections.
- Wood’s Lamp Examination: For certain fungal infections and conditions like vitiligo.
Differential Diagnosis:
- Allergic Reactions: Can mimic skin infections but usually respond to antihistamines.
- Inflammatory Skin Conditions: Like eczema or psoriasis.
- Autoimmune Disorders: Such as lupus can present with skin manifestations.
- Non-Infectious Skin Lesions: Including benign or malignant growths.
Management:
- Bacterial Infections:
- Topical Antibiotics: For localized, mild infections.
- mupirocin 2% ointment or cream topical 8/24 for 5/7
- Oral or Intravenous Antibiotics: For more extensive or severe infections.
- Flucloxacillin 500mg oral QID for up to 7/7 (stop early if resolved)
- Topical Antibiotics: For localized, mild infections.
- Viral Infections:
- Antiviral Medications: For herpes or shingles.
- Topical Treatments: For warts, like salicylic acid or cryotherapy.
- Fungal Infections:
- Antifungal Creams: For localized infections like athlete’s foot or ringworm.
- Oral Antifungal Medications: For more extensive infections or those resistant to topical treatment.
- Parasitic Infections:
- Scabicides and Pediculicides: For scabies and lice.
- Hygiene Measures: To prevent spread and re-infestation.
General Care:
- Skin Hygiene: Keeping the affected area clean and dry.
- Avoiding Irritants: Such as harsh soaps or chemicals.
- Preventing Spread: Proper hygiene and avoiding sharing personal items.
- Moisturizers: To maintain skin barrier, especially in dry or eczematous skin.
Prevention:
- Good Hygiene Practices: Regular washing and use of antiseptics for cuts or abrasions.
- Avoiding Contact: With individuals known to have skin infections.
- Environmental Measures: Like keeping communal areas clean, especially in schools, gyms, or pools.
Follow-Up:
- Monitoring response to treatment is important, especially for bacterial infections, to ensure antibiotics are effective. Recurrent or persistent infections may require re-evaluation or referral to a dermatologist.
Early treatment of skin infections is crucial to prevent complications, particularly in individuals with underlying health issues or weakened immune systems.