A lot of small granular brown spots on the arms may be caused by age spots, flat warts and other factors, which can be removed by medication (such as salicylic acid), physical therapy and surgery.
1. Age spots: the disease will make brown flat papules or plaques appear on the arms. Generally there is no need for treatment, when there is a cosmetic demand, you can remove age spots by destroying the diseased tissues with laser, and you can also make the plaques coagulate and disappear by electrocautery; you can also make age spots disappear by necrosis of the tissues through freezing treatment.
2. flat warts: the disease will make the arm appear slightly elevated flat pimples, brown. You can use salicylic acid to exfoliate; use interferon to fight viral infections; use BCG polysaccharide nucleic acid injection and thymidine injection to regulate immunity.
You can also remove flat warts by physical means such as carbon dioxide laser and liquid nitrogen freezing; or you can surgically bury the warts within the skin to eliminate them through autoimmunity.
The arm grew a lot of small particles of brown spots can be timely consultation, identify the cause of the relevant treatment, strictly comply with the doctor’s prescription medication.