Red circular patches on the skin can stem from various factors, ranging from common dermatological conditions to allergies or insect bites. Understanding the cause of this condition is the first step toward finding appropriate treatment methods and preventing disease recurrence.
Causes of Red Circular Patches on the Skin
Dermatological Conditions:
- Pityriasis Rosea: A benign skin condition, often self-resolving, commonly seen in young individuals. The red circular patches associated with pityriasis rosea are typically larger in size, accompanied by smaller red spots around them.
- Contact Dermatitis: Skin reaction to allergens or irritants from external substances. Circular red patches on the skin may appear along with itching, dryness, and sometimes blistering.
- Nummular Eczema: A form of eczema that causes itchy, red, coin-shaped patches of skin, which may become dry and scaly and may ooze.
- Ringworm (Tinea Corporis): A fungal infection. The characteristic red, itchy circular rash of ringworm can spread easily.
- Granuloma Annulare: A benign condition, the cause of which is unclear but may be related to genetics, infection, or autoimmune reaction. The red ring-shaped rash tends to be raised and may not itch, often appearing on the hands, feet, or trunk.
Other Causes:
- Allergies: Allergic reactions leading to red rashes may result from contact with certain foods, cosmetics, chemicals, etc.
- Insect Bites: Bites from certain insects like mosquitoes, chiggers, etc.
Symptoms Accompanying Red Circular Patches on the Skin
In addition to red circular patches on the skin, individuals may experience:
- Sensations on the skin where red circular patches are present
- Itching associated with red circular patches
- Pain, stinging, or burning sensations
- Other changes on the skin such as swelling, blistering, or peeling
Diagnosis of Red Circular Patches
Diagnosis of red circular patches on the skin relies on direct examination by a dermatologist. Additionally, the doctor may request the following tests to determine the cause:
- Microscopic examination of skin scrapings
- Skin biopsy
- Blood tests, etc.
Treatment of Red Circular Patches on the Skin
Treatment methods for red circular patches on the skin depend directly on the causative factors:
Common Medications:
- Topical medications: Antifungal creams, corticosteroids, anti-itch creams, etc.
- Oral medications: Antibiotics, antihistamines, medications for autoimmune diseases, etc.
Home Remedies to Support Treatment (not to replace doctor’s advice):
- Cold compresses, cool baths to relieve itching
- Keep the skin moisturized, avoid scratching or rubbing
- Prevention Measures
Some preventive measures to reduce the risk of developing circular red rashes on the skin include:
- Maintain cleanliness
- Avoid contact with allergens
- Wear breathable clothing
- Maintain a balanced diet and moderate lifestyle
When to See a Doctor
Visit a reputable healthcare facility if you experience severe symptoms such as:
- Widespread rash all over the body
- Painful, swollen, pus-filled red rings
- Fever, difficulty breathing
Frequently Asked Questions Related to Red Circular Patches on the Skin
Here are 5 commonly asked questions related to “red circular patches on the skin” along with answers.
Pityriasis Rosea
Cause: Viral, exact mechanism unclear. Symptoms: Large red circles (2-5cm) on the torso, extending to limbs, with small pinkish scales. Epidemiology: Common in young individuals (10-30 years old), often recurrent.
Contact Dermatitis
Cause: Direct contact with allergens or irritants (chemicals, cosmetics, metals, etc.). Symptoms: Circular red patches on the skin, itching, stinging, may include fluid-filled blisters, peeling. Epidemiology: Can occur at any age.
Nummular Eczema
Cause: Unclear, possibly related to genetics, allergies, stress, etc. Symptoms: Itchy, red, coin-shaped patches of skin, swollen, dry, may ooze, often appear on hands, feet. Epidemiology: Common in children, older adults.
Tinea Corporis (Ringworm)
Cause: Fungal infection (Tinea), transmitted through direct or indirect contact (personal items). Symptoms: Red circular rash, well-defined edges, intense itching, may spread, peeling. Epidemiology: Can occur at any age, more prevalent in hot, humid climates.
Granuloma Annulare
Cause: Unclear, possibly related to genetics, infection, or autoimmune reaction. Symptoms: Red ring-shaped rash, raised bumps, well-defined edges, mild itching, often on hands, feet, trunk. Epidemiology: Common in children, adolescents.
Conclusion
Developing red circular patches on the skin can be concerning. This article has provided useful information about potential causes, symptoms, and treatment options. However, to receive the most appropriate solution for each case, it’s advisable to visit a reputable healthcare facility for examination and advice from a dermatologist.
References:
https://dalieu.vn/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8423598/
https://www.cdc.gov/fungal/diseases/ringworm/health-professionals.html
https://www.aad.org/public/diseases/eczema
Kiểm Duyệt Nội Dung
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