Methyl salicylate and camphor also may be poisonous when applied to a large area of the skin, or when combined with heat to increase absorption of the active ingredients.
当樟脑和水杨酸甲酯应用到大面积皮肤或与热相结合时会引起中毒，主要是由于提高对有效成分的吸收。
2
Some cases of accidental overdose of methyl salicylate and camphor have been fatal.