Upper-Lip Wax on Retinoid-Treated Skin with a History of Cold Sores
A 31-year-old client comes for upper-lip and chin waxing. She has polycystic ovary syndrome and has used topical tretinoin 0.025% cream every night for three months; she applied it last night. She also has a history of herpes labialis, with the last outbreak six months ago, and a small dry, cracked patch at the right corner of her mouth. She wants hot wax because 'strip wax hurts too much'. She has an important presentation in two days. She has had waxing many times before, but not since starting tretinoin. She denies active cold sores and is not on antiviral prophylaxis. The salon uses hot wax at 60–65°C and has a patch-test policy for new clients. She is not pregnant or breastfeeding and takes no other medication.
1. Is hot wax appropriate today? Explain the risks from tretinoin, the dry patch, and the herpes history.
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No. Hot wax is the worst option here for three overlapping reasons.
Tretinoin: topical retinoids reduce corneocyte cohesion and thin the stratum corneum. Waxing can remove living epidermis along with the hair, especially on the upper lip where the skin is thin. Hot wax adds thermal risk: at 60–65°C, a compromised barrier is more likely to burn or strip, causing erosions, post-inflammatory hyperpigmentation and infection. The fact that she applied it last night means the skin is at peak fragility; stopping for a few days would not make today safe.
Dry cracked patch: this is a break in the skin barrier. Wax can tear across it, cause bleeding and create an entry point for bacteria. It should not be waxed over.
Herpes history: trauma to the lip area can trigger reactivation of herpes labialis. She has no active lesion, so this is not an absolute bar to all hair removal, but it raises the risk and should be discussed. Antiviral prophylaxis is a medical decision for her GP or pharmacist, not something the therapist prescribes. Combining a reactivation trigger with retinoid-thinned skin and a cracked patch makes today's request unsafe.
2. What alternatives or modifications could you offer, and what aftercare would you give?
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I would offer threading or gentle tweezing as alternatives, but only on intact skin and only if the client tolerates it. I would avoid the cracked corner of the mouth entirely. Threading is mechanical and can still irritate retinoid-treated skin, so I would work conservatively, stop if the skin reddens excessively or lifts, and patch-test any product used afterwards. I would not use hot wax, strip wax, or a depilatory cream on the upper lip; depilatories can cause chemical burns on compromised skin.
For future waxing, she should discuss stopping tretinoin with her prescriber - commonly at least 5–7 days before waxing, but this must be individualised - and the skin should be intact. If she has recurrent cold sores, she should ask her GP or pharmacist about prophylaxis before trauma. Today I would give simple aftercare: keep the area clean, avoid exfoliants and retinoids on the treated area for a few days, use a plain moisturiser and sunscreen, and do not pick. If tingling or blisters develop, she should seek advice promptly.
3. How would you document and communicate the decision, especially given her presentation in two days?
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I would explain the reasoning briefly and without alarm: 'Your skin is thinner and more fragile while you are using tretinoin, and there is a small crack at the corner of your mouth. Waxing could tear the skin or cause a mark, and it can also wake up cold sores. I can thread the area instead, or we can leave it and focus on making the skin comfortable before your presentation.' I would not say she has an infection or prescribe antivirals.
In the record I would note the tretinoin strength and frequency, the last application, the cracked patch, the herpes history, the refusal of wax, the alternative offered, the client's decision, and the aftercare advice. If she declines threading and leaves untreated, that is her choice - document it. If she insists on waxing, I would still decline the hot wax on the upper lip and explain why. The presentation deadline does not change the skin's biology; a burn or cold sore two days before an event would be worse than leaving the hair.