In short. A maintenance approach rather than a cure: protection kept up, periodic review, treating what is treatable, and accepting what has already happened to the skin.

Key points

  • Photodamaged skin gets compared in mirrors against other people, which is not informative because the dose and the skin type were never the same.
  • The useful comparison is with your own skin six months or a year ago, in the same light.
  • That is why photographs taken at intervals are worth more than any judgement of a single day.

Sun damage is not something that gets finished. There is no point at which the skin returns to the state it was in before, and a plan built around finding that point will spend a great deal and disappoint. What is available is maintenance: protection kept up, review at intervals, treatment for what can be improved, and acceptance of what cannot.

What maintenance looks like in practice

Protection every day, including the days that do not feel sunny. A topical routine judged over months rather than weeks, kept while it is doing something and dropped when it is not. A course of peel or light treatment repeated at an interval rather than regarded as a single purchase. And review of the whole skin at intervals, which cannot be done at home.

Choosing what to treat, and what to leave

Being selective is the difference between a maintenance plan and a treadmill. Colour and surface texture usually give the most visible return for the time and money spent. The change in the dermis improves with resurfacing and nothing else, and the improvement is real but partial. Laxity is a surgical question rather than a surface one. Some things are better accepted than chased, and saying so is part of an honest consultation.

The comparison that matters is with your own skin

Photodamaged skin gets compared in mirrors against other people, which is not informative because the dose and the skin type were never the same. The useful comparison is with your own skin six months or a year ago, in the same light. That is why photographs taken at intervals are worth more than any judgement of a single day.

The trap of chasing a cure

The pattern is recognisable: a course of treatment that produces a genuine improvement, then disappointment when it fades, then a stronger treatment, then a complication, and eventually skin that is worse than the person started with. It happens because the improvement was experienced as a cure rather than as maintenance, and each later step was chosen to recover a result. The way out is to decide in advance what will be maintained and at what interval, and to treat anything beyond that as a new decision rather than a continuation.

What remains worth doing

Protection keeps the total from growing, and protects the result of everything else. Review finds the things that need finding. Treatment improves what it can, while it is maintained. Nothing on that list is dramatic, and together they are a reasonable answer to a problem that has no cure and does not need one.

Signs that the plan has gone wrong

  • Increasingly strong treatments at shortening intervals to hold the same result.
  • New darkening, scarring or persistent redness in a treated area.
  • A mark or patch that has changed, in a plan that is only about appearance.

The protection habit this depends on is set out in protection that works in daily life, and what the treatments can realistically hold is covered in peels, light and laser.

Related reading

Frequently asked questions

Should I stop treatment once the skin looks better?

That depends what the treatment was for. A course directed at pigment or texture holds its result for a while and then fades, because the exposure that produced the problem has not stopped, so an interval for repeating it is usually planned from the start. A decision to stop entirely is reasonable; a decision to stop without knowing what happens next is how people end up surprised.

How often should sun-damaged skin be reviewed?

The interval is set by how much damage is present, how many lesions there have been before and whether there is a personal or family history of skin cancer, so it is a clinical judgement rather than a fixed number. What matters is that the interval is agreed and recorded at the assessment rather than left to be decided when something appears.

Is it worth treating sun-damaged skin at all if it cannot be cured?

Yes, for the parts that can be improved. Colour, surface texture and individual lesions often respond well, and the improvement is worth having even though it is maintained rather than finished. What is not worth doing is pursuing the last part of the change with increasingly strong treatment, because that is where complications come from.

Risks & Limitations

  • Damage already in the dermis is improved by treatment rather than removed by it, and the improvement fades while the exposure that produced it continues.
  • Peels, light treatment and resurfacing can leave the treated skin darker or lighter than it was, and the risk is higher in darker skin tones.
  • Resurfacing costs days to weeks of visible recovery, and redness often outlasts the healing.
  • Skin with a large cumulative dose stays at raised risk of further lesions after treatment, which is why review continues rather than ends.

When to Seek Care

  • A mole or patch that changes in size, shape, colour or height.
  • A spot that bleeds without being knocked, crusts, itches persistently or fails to heal over a few weeks.
  • A new lump or nodule on skin that has had a great deal of sun, particularly on the face, ear, scalp or lip.
  • Persistent redness, scaling or roughness across an area of skin rather than in a single spot.

References & Further Reading

  • American Society of Plastic Surgeons (ASPS) — procedure and safety guidance
  • National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
  • Cochrane Library — systematic reviews
  • Chinese Medical Association Plastic Surgery Branch — clinical guidance

Medically reviewed by Yongbo Jia, MD (贾勇波), Deputy Director & Head of Dermatology. Last reviewed: 19 September 2026.

This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.