A patch of bumps has appeared on the shoulder.
Jun 01, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
A patch of bumps on the shoulder is usually caused by conditions such as eczema, folliculitis, or allergic dermatitis. Patients should use medications under a doctor's guidance based on the underlying cause. Besides these common causes, other possible factors include urticaria, herpes zoster, tinea corporis, and psoriasis. During treatment, avoid scratching the affected area to prevent infection.
A cluster of bumps appearing on the shoulder is usually caused by conditions such as eczema, folliculitis, or allergic dermatitis. Patients should seek medical guidance to identify the underlying cause and use appropriate medications accordingly. Specific analyses are as follows:
1. Eczema
Eczema is a common inflammatory skin condition affecting the epidermis, often associated with environmental irritants, allergies, and other factors. It typically causes clusters of small red bumps or papulovesicles in localized areas, accompanied by itching and stinging pain. Patients are generally advised to apply topical medications such as tacrolimus ointment or desonide cream under medical supervision to alleviate symptoms.
2. Folliculitis
Folliculitis is usually caused by bacterial infection of hair follicles, presenting as firm, red papules around the follicular openings, often accompanied by tenderness and discomfort upon touch. Under medical guidance, patients may apply topical treatments such as erythromycin ointment or chlortetracycline hydrochloride ointment to relieve symptoms.
3. Allergic Dermatitis
If an individual is allergic to certain clothing materials or has recently come into contact with allergenic substances, red rashes may develop locally, accompanied by swelling, itching, and warmth. Under medical supervision, patients can use calamine lotion or compound acetic acid dexamethasone cream to help alleviate these symptoms.
Besides the common causes mentioned above, other possible conditions include urticaria, herpes zoster, tinea corporis, and psoriasis. During treatment, it is important to avoid scratching the affected area to prevent secondary infection.
