What causes skin abrasions with yellow fluid oozing?

Skin breakdown with yellowish discharge may have various causes, commonly including non-pathological and pathological factors such as eczema and folliculitis. Treatment should be based on the underlying cause. A detailed analysis is as follows:

　　I. Non-Pathological Factors

The patient's skin may have been damaged due to impact or pressure, resulting in a break or crack. If the wound is small, disruption of the soft tissue beneath the skin can lead to leakage of tissue fluid. During the healing process, the body's immune system may expel some blood and tissue fluid to isolate the injured area. The yellowish fluid oozing from broken skin helps accelerate wound recovery and is considered normal; there is no need for excessive concern.

　　II. Pathological Factors

1. Eczema

This condition is usually associated with exposure to external allergens or nutritional disturbances. It may present with papules, vesicles, or bullae, and in severe cases, may be accompanied by erosion and exudation. Symptomatic treatment may include oral administration of chlorpheniramine maleate tablets or loratadine tablets under medical guidance.

2. Folliculitis

Folliculitis may result from consuming excessive spicy or irritating foods such as chili peppers, garlic, or mustard, or from bacterial infections (e.g., Staphylococcus aureus), leading to small bumps on the skin accompanied by itching and pain. Secondary infection may produce yellow pus. Topical treatments such as erythromycin ointment or mupirocin ointment may be used under a doctor’s supervision.

In addition, conditions such as impetigo or tinea corporis could also cause similar symptoms. If symptoms persist or worsen, prompt medical consultation is recommended for accurate diagnosis and treatment by a qualified physician.