Long arm spots may be physiological reasons, such as long time being irradiated by sunlight, which can be relieved by itself, or it may be caused by purpura or syphilis and other pathological factors, which can be treated by medication in general.
1. Physiological factors: prolonged exposure of arms to ultraviolet rays can easily lead to skin aging, which in turn may lead to arm spotting, avoiding direct sunlight irradiation of the arms can generally be relieved on their own.
2. Pathologic factors:
(1) purpura: due to genetic factors or metabolic disorders, the red blood cells in the blood vessels to the skin mucous membrane exudation, the phenomenon of arm spot, generally oral drugs such as isopropylazine hydrochloride, chlorpheniramine or triclopyr, etc. for treatment.
(2) Syphilis: due to low immunity, infected by syphilis spirochete and lead to arm skin spotting, generally oral medication such as benzylpenicillin, ceftriaxone sodium or tetracycline and other drugs for treatment.
Arm spots may also be eczema and other causes, if the symptoms are serious need to go to the hospital in time to find out the cause of the disease, under the guidance of the doctor to use medication, do not self-medication, so as not to delay the condition.