Avoid physical contact with the area from the time of the first symptoms (tingling, itching, burning) until all sores are completely healed, not just scabbed - over.
从第一次症状(刺痛感、痒、灼烧感)开始就避免接触局部，直到疼痛感全部消失而不是仅仅结痂后。
2
As a lump of coal which has been in contact with oxygen for centuries without burning will combine with it when once ignited, so nitrogen, excited by electricity, will burn.