Causes of arm rash

There are many conditions that lead to red rash on the arm, but the most common is caused by allergies or eczema. Patients who show allergic symptoms should promptly identify allergens to prevent future exposure from causing allergies. If the situation is more serious, patients should go to the hospital in time for some anti-allergic treatment under the doctor's advice. Eczematous patients should pay attention to maintaining personal hygiene in their daily lives. Do not stay in some air-tight, damp and dark rooms for a long time to ensure indoor air circulation. Pay attention to keeping a light diet. Do not scratch the affected area excessively, resulting in skin rupture of the affected area, which is likely to trigger a series of inflammation.