What causes whole-body itching, rashes, and fever, and what should be done about it?

Under normal circumstances, generalized itching, rash, and fever may be related to weather changes, insect bites, eczema, pruritus, neurodermatitis, or other factors. It is recommended to seek medical attention promptly to determine the underlying cause and receive appropriate symptomatic treatment under the guidance of a qualified physician.

1. Weather changes: Dry climatic conditions may lead to skin dehydration or excessive moisture evaporation, resulting in dry, itchy skin. Excessive scratching may cause rashes or bumps. Additionally, mild fever may occur due to poor bodily adaptation to environmental changes. Increasing fluid intake and using a humidifier can help alleviate symptoms caused by dry weather.

2. Insect bites: When insects bite, they inject saliva to prevent blood clotting, which may trigger a localized allergic reaction, causing itching, redness, swelling, rashes, and sometimes mild fever. According to medical advice, topical medications such as camphor-menthol-salicylate cream or calamine lotion may be used to relieve swelling and itching.

3. Eczema: Eczema may be associated with environmental factors, infections, and other triggers. Symptoms include dry, red, swollen, itchy skin, and rashes. Patients may experience widespread itching and eruptions; in severe cases, symptoms may intensify and be accompanied by fever. As directed by a doctor, topical treatments such as prednisone acetate cream, Binghuang Fule ointment, or betamethasone cream may be used to manage symptoms.

4. Pruritus: Pruritus is a chronic skin condition characterized primarily by intense itching, which may lead to skin bumps and damage. Patients often suffer from generalized itching and rashes, and in some cases, fever may develop secondary to persistent scratching. Under medical guidance, medications such as vitamin E lotion, desonide cream, or hydrocortisone cream may be used to alleviate symptoms.

5. Neurodermatitis: Neurodermatitis is a skin disorder triggered by nervous system dysfunction, leading to generalized itching and rashes. When symptoms worsen, fever may also occur. It is advisable to follow medical instructions and use anti-inflammatory medications such as clobetasol propionate cream, hydrocortisone cream, or desonide cream for relief.

In addition, maintaining proper skin hygiene and following a light, balanced diet can support recovery. It is recommended to eat清淡 food and avoid spicy or irritating foods such as garlic, spicy hot pot, and mustard. Adequate rest should be ensured, and overexertion should be avoided to maintain overall health.