Where should you never apply wax?

Applying wax over warts, moles, abrasions, or inflamed skin is not safe and is the correct choice for this question. This is because these areas can be sensitive, prone to irritation, and could potentially lead to further complications if wax is applied. Warts and moles may be susceptible to trauma, and waxing over them can damage the skin or aggravate existing conditions. Inflamed skin is already compromised and applying wax can cause pain, increase inflammation, or lead to infection.

On the other hand, applying wax to dry skin areas, while it may not provide ideal results, is not inherently dangerous. Sensitive skin can also be waxed with caution, especially if appropriate products are used, and waxing on the forehead is commonly practiced, as long as there are no other skin concerns present. Therefore, the safest practice is to avoid waxing over any abnormal or compromised skin.