My boyfriend has many small bumps on his body.

Your boyfriend has many small bumps on his body, which may be caused by factors such as skin allergies, acne, or folliculitis. Treatment should target the underlying cause. Specific analyses are as follows:

1. Skin Allergy

This is a type of skin reaction, usually triggered by contact with certain substances. It causes small red, swollen, and itchy or painful bumps to appear on the skin. Avoid contact with allergens, and under a doctor's guidance, antiallergic medications such as loratadine tablets, olopatadine tablets, or cetirizine tablets can be used for treatment.

2. Acne

This is a common skin condition that typically occurs during puberty, leading to the appearance of small bumps, usually on the face, back, and chest. As directed by a physician, topical medications such as adapalene gel, tretinoin cream, or benzoyl peroxide gel may be prescribed, which have anti-inflammatory and antimicrobial effects.

3. Folliculitis

This is an infection of the hair follicles, usually caused by bacteria, resulting in red, swollen, and painful bumps on the skin. Topical antibiotic ointments such as mupirocin ointment, fusidic acid cream, or ketoconazole cream may be used under medical guidance. Oral antifungal medications such as itraconazole capsules, fluconazole capsules, or voriconazole capsules may also be prescribed.

In addition, warts may also present as small, discrete bumps. If numerous small bumps appear on the body, it is important to seek timely medical evaluation to determine the exact cause and receive targeted treatment under a doctor’s supervision.