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The image you uploaded shows multiple red, raised, irregularly shaped patches, likely with itching, mostly on the shoulder and upper back area. This is consistent with urticaria, commonly known as hives.

Possible Diagnoses and Likelihoods:

  1. Urticaria (Hives) – 85%

    • Raised, red or pink wheals (welts), often itchy.

    • Lesions typically appear and fade within 24 hours, but new ones may appear elsewhere.

  2. Contact Dermatitis – 7%

    • If the person came into contact with an irritant or allergen (e.g., soap, latex).

    • Red, itchy, and sometimes blistering, but less transient than hives.

  3. Erythema Multiforme (minor) – 5%

    • Target-like or ring lesions; often triggered by infections like herpes.

    • Usually appears symmetrically and is less itchy.

  4. Drug Reaction or Allergic Rash – 3%

    • Similar appearance, but linked to recent medication or food ingestion.

Suggested Remedies for Urticaria (Hives):

1. Antihistamines (First-line)

  • Loratadine (Claritin) 10 mg once daily

  • Cetirizine (Zyrtec) 10 mg once daily

  • Fexofenadine (Allegra) 180 mg once daily

  • For severe itching: Diphenhydramine (Benadryl) 25–50 mg at night (may cause drowsiness)

2. Avoid Triggers

  • Common triggers: certain foods (nuts, shellfish), medications (NSAIDs, antibiotics), stress, heat, or infections.

  • Keep a journal to track and identify possible triggers.

3. Cool Compress & Skin Care

  • Apply cold compresses to reduce itching and swelling.

  • Use fragrance-free moisturizers to soothe skin.

4. If Severe or Chronic (Lasts >6 Weeks)

  • See a dermatologist or allergist.

  • May require prescription medications like Montelukast, Hydroxyzine, or even low-dose steroids in short courses.

5. Seek Emergency Help If:

  • Swelling occurs in lips, tongue, or throat.

  • Trouble breathing (may be anaphylaxis, a medical emergency).

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