A rash on the neck can have many causes, including allergies, infections, skin irritants, autoimmune diseases, and other skin conditions. Common causes are:
- Allergic reactions to substances like pollen, pet dander, perfumes, or jewelry.
- Infections such as viral (chickenpox, measles, shingles), bacterial (impetigo, scarlet fever), or fungal infections (ringworm).
- Irritation from heat, sweat, harsh soaps, detergents, or fabrics.
- Skin conditions like eczema, psoriasis, or contact dermatitis.
- Stress-related rashes and autoimmune diseases like lupus or rheumatoid arthritis.
This rash can vary in appearance, be itchy or painful, and may come with other symptoms. It is important to identify the exact cause for proper treatment, and consulting a healthcare provider is recommended if the rash persists or worsens.