What causes red bumps on the back and face?

In general, red bumps appearing on the back and face may be related to factors such as acne, allergic dermatitis, or urticaria. Appropriate treatment methods should be selected based on the specific underlying cause.

1. Acne

Acne is a common skin condition primarily caused by excessive sebum production from sebaceous glands, leading to clogged pores and bacterial infection. Acne commonly occurs during adolescence but can also appear in adulthood. It's important to maintain a positive and optimistic mindset, and avoid consuming spicy, greasy foods, and sweets, as these can stimulate oil secretion and worsen acne symptoms.

2. Allergic Dermatitis

Allergic dermatitis is a skin condition mainly triggered by an allergic reaction to certain substances. Symptoms include skin itching, redness, swelling, and rashes. Under medical guidance, topical anti-itch medications such as menthol ointment or cyproheptadine cream may be used to relieve itching.

3. Urticaria

Urticaria is an allergic skin disorder characterized by red, swollen, and itchy rashes on the skin, often accompanied by systemic allergic symptoms such as difficulty breathing and throat swelling. Treatment may include oral medications such as levocetirizine hydrochloride tablets or compound glycyrrhizin tablets, under a doctor’s supervision.

In addition, eczema could also be a possible cause. It is recommended to seek timely medical attention for proper examination and diagnosis to identify the underlying cause and initiate appropriate treatment. Maintain good personal hygiene, keep the skin clean and dry, and avoid friction and irritants to prevent infections and disease progression.