It's the kind of metal powder that can stick to clothes and hands, and then shine one by one, which can be washed off. Toxic. It's the little white dot in the lower left part of the picture. In fact, it's all on my coat!
The observation of your symptoms should have no impact, and your skin is not damaged and will not cause any infection, so you should not generate psychological pressure and wash in time. You can wash your clothes or hands.