What would cause itchy res sores on bottom that have welts?

1. Contact Dermatitis: Allergic reaction to certain substances like soaps, detergents, fabric softeners, etc.

2. Intertrigo: Redness and soreness due to skin rubbing against skin in warm, moist areas.

3. Yeast Infection: Can occur in moist areas like the bottom and cause itchy red rashes.

4. Heat Rash: Small, itchy red bumps caused by blocked sweat glands.

5. Psoriasis: Chronic skin condition characterized by red, itchy, scaly patches.

6. Eczema: Group of skin conditions causing red, dry, itchy skin.

7. Scabies: Contagious skin infection caused by tiny mites that burrow under the skin.

8. Shingles: Viral infection that causes painful, blistering rash.

9. Certain medications: Side effects of some drugs can include itchy skin rashes.

10. Autoimmune disorders: Conditions where the immune system attacks healthy tissue, causing inflammation.

11. Liver or Kidney Disease: Accumulation of waste products can lead to itchy skin.

12. Iron or Vitamin B12 deficiency: Nutritional deficiencies can cause skin issues.

If you have itchy, red sores on your bottom with welts, it is important to consult a healthcare professional for a proper diagnosis and appropriate treatment.