A lot of small red dots on the legs may be due to insect bite dermatitis, contact dermatitis, allergic purpura and other factors, need to clarify the cause of the symptomatic treatment, common therapeutic drugs such as mupirocin, benadryl, etc., and need to be surgical treatment if necessary.
1. Insect bite dermatitis: petechiae and papules may appear on the legs after being bitten by mosquitoes and fleas, often accompanied by itching. It is necessary to use etidronate cream, benadryl cream and other anti-itch and anti-inflammatory treatment according to the condition, and use mupirocin ointment, erythromycin ointment and other antibacterial drugs to treat the infection.
2. Contact dermatitis: leg contact with pollen, detergents and other irritating or allergic substances may lead to inflammatory reactions, which may be manifested as erythema, pimples, and may be accompanied by itching and burning. You need to actively search for the cause of the disease to avoid re-exposure, and use Benadryl cream, Dinaid ointment and other drugs to treat the disease according to the condition.
3.allergic purpura: a common vasovagal allergic reaction disease, skin manifestations of petechiae, ecchymosis, but also joint swelling and pain, abdominal pain and other symptoms, need to use prednisone, cyclophosphamide and other drugs under the guidance of the doctor for treatment, plasma replacement or leukocyte removal surgery if necessary.
A lot of small red dots on the legs may also be due to other factors, it is recommended that patients seek medical attention in a timely manner, to clarify the cause of the disease and then symptomatic treatment, to avoid self-medication, so as not to delay the condition.