Put on a pair of rubber gloves. Sweep the Drano crystals into a dust pan with a whisk broom and dispose of the crystals down the drain. Run water in the sink to neutralize the chemicals. Dip the whisk broom in a cup of vinegar or lemon juice. Pour the vinegar over the dust pan.
Some of the causes in children for Dark circles under eyes in children may include: 1  Lack of sleep. 2  Nasal congestion. 3  Black eye due to trauma.  Frequent eye 1  rubbing. Hayfever.  Inherited 1  trait. Dehydration. 2  Allergies. 3  Eczema. Phenol sulfotransferase deficiency.
Many people associate allergies with dark circles. This is a real and established connection. In fact, many doctors consider dark circles as an indication of allergies in children. Allergies cause dark circles in two ways: first, histamine reactions themselves can cause dark smudges to appear under the eyes. The biology of this is way too complicated to get into here.