Dense small dots on the arm do not hurt or itch, if the perifollicular keratosis, most do not need to be treated, if the allergic purpura, etc., then need to be treated.
1. Perifollicular keratosis: manifested as a sense of roughness of the skin, visible follicular papules of the size of a needle tip to corn grain, patients often have no obvious self-conscious symptoms, the disease does not usually need to be treated. If self-consciousness affects aesthetics, you can consider the external use of vitamin A cream, salicylic acid cream, urea cream and other softening keratin, serious patients can also take oral vitamin A, vitamin E and so on.
2. Allergic purpura: often appear in different parts of the body of the bruises, bruises, there may be no obvious self-conscious symptoms. This situation is in need of treatment, it is recommended to actively seek medical attention, improve the blood routine, platelet function and other related examinations, and standardized treatment under the guidance of the doctor, commonly used drugs such as antihistamine drugs such as loratadine, and glucocorticoids such as prednisone.
There are many reasons for the above symptoms, it is recommended to consult a doctor in time, after a clear diagnosis and active treatment. The medication should be used in accordance with the doctor’s instructions, do not self-medicate.