What precautions should be taken before a laser hair removal session?

Before a laser hair removal session, it is crucial for clients to avoid medications that increase photosensitivity. This precaution is important because certain medications can make the skin more sensitive to light, which can lead to adverse reactions when exposed to the laser during the treatment. Examples of such medications include some antibiotics, certain anti-inflammatory drugs, and topical treatments like retinoids. Ensuring that clients are not on these medications helps to minimize the risk of side effects such as burns, pigmentation changes, or excessive irritation during the procedure.

In contrast, increasing sun exposure, drinking alcohol beforehand, and vigorous skin exfoliation are not advisable practices prior to a laser hair removal session. Sun exposure can heighten the risk of burns and discoloration, alcohol can dehydrate the skin and increase sensitivity, and vigorous exfoliation can irritate the skin, all of which can compromise the safety and effectiveness of the treatment. Thus, the correct answer highlights a key aspect of safely preparing for laser hair removal.