Dry eczema itself usually doesn't directly cause other diseases, but it can cause some discomfort or skin problems. It's recommended that you pay attention to skin care and treat symptoms promptly to prevent the condition from worsening.

Specifically, the effects of dry eczema may include:

1. Damaged skin barrier: Skin becomes dry, flaky, and easily becomes sensitive, with reduced resistance to external stimuli.
2. Itching and discomfort: Persistent itching may affect sleep and daily life, and frequent scratching may lead to skin breakdown.
3. Secondary infection: If the skin cracks due to scratching, bacteria and other microorganisms may take advantage of the vulnerability and cause local infection, which manifests as redness, swelling, and oozing.
To mitigate these effects, you can focus on daily moisturizing, use gentle skincare products, and avoid showering with excessively hot water. If your skin experiences significant redness, swelling, pain, or recurring discomfort, it is recommended to consult a doctor for appropriate care guidance.