Small raised red spots on the arm
Jun 01, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
Raised red spots on the arms may be caused by insect bites, folliculitis, allergies, or other reasons, and treatment should be selected based on the specific cause. As the arms are exposed, mosquito or insect bites can lead to red papules or wheals on the skin surface, accompanied by itching. Besides these common causes, other possible conditions include eczema, keratosis pilaris, urticaria, and others.
Small raised red spots on the arm may be caused by insect bites, folliculitis, allergies, or other reasons. Treatment should be selected based on the specific cause. Detailed analysis is as follows:
1. Insect bite reaction
The arms are often exposed, making them susceptible to insect bites. The injected venom can trigger skin reactions such as red papules and hives, accompanied by itching. Medications such as fluticasone propionate cream or compound camphor cream may be used under medical guidance.
2. Folliculitis
Frequent scratching may damage the skin and lead to infection with Staphylococcus aureus, causing folliculitis. It initially presents as multiple small red papules. As the condition progresses, these develop into pustules with a white-yellow center surrounded by redness. Treatments may include ofloxacin gel or fusidic acid cream, used as directed by a physician.
3. Allergy
Contact with allergens such as pollen, catkins, or animal fur on the arms may trigger an allergic reaction. Symptoms include hives, papules, and erythematous patches that vary in shape and size. Oral medications such as levocetirizine hydrochloride tablets or epinastine hydrochloride capsules may be prescribed by a doctor.
In addition to the common causes mentioned above, other conditions such as eczema, keratosis pilaris, or urticaria may also be responsible. If any discomfort occurs, it is recommended to seek medical attention promptly.
