Actinic keratoses usually appear on skin that's exposed to the sun.
Common places to get them are the:
The patches can be:
red, pink, brown or skin-coloured
rough or scaly (like sandpaper)
flat or stick out from the skin (similar to warts)
a few millimetres to a few centimetres across
sore or itchy
When to see your GP
See your GP if you have:
an unusual growth on your skin that you're worried about
a patch or lump on your skin that gets bigger quickly, starts to hurt or bleeds
had actinic keratoses before and think you may have a new patch
It can be hard to tell if you have actinic keratoses. The patches can look similar to other conditions such as warts or skin cancer.
Your GP can usually check if it's actinic keratoses by looking at your skin. They can refer you to a skin specialist if they're not sure.
Treatments for actinic keratoses
Talk to your GP about the treatment options for actinic keratoses.
Sometimes they may just suggest that you check the patches regularly and come back if they start to grow quickly, hurt or bleed.
If the patches cause problems (for example, they're unsightly or sore) or your doctor is concerned they could turn into cancer, they may suggest treatments such as:
prescription creams and gels – including 5-fluorouracil cream, imiquimod cream, diclofenac gel (this isn't the same as the painkilling gel you can buy) and ingenol mebutate gel
freezing the patches (cryotherapy) – this makes the patches turn into blisters and fall off after a few weeks
scraping away the patches (curettage) with a sharp spoon-like instrument called a curette while your skin is numbed with local anaesthetic
photodynamic therapy (PDT) – where special cream is applied to the patches and a light is shone onto them to kill the unusual cells; this usually involves using a lamp, but sometimes natural sunlight is used instead
cutting out the patches with a scalpel while your skin is numbed with local anaesthetic
The best treatment depends on how many patches you have, where they are and what they look like. Ask about the benefits and risks (such as side effects or scarring) of each option.
Looking after your skin if you have actinic keratoses
If you have actinic keratoses, it's very important to protect your skin from the sun.
This can reduce the risk of more patches appearing and may help reduce your risk of getting skin cancer.
To protect yourself from the sun:
cover your skin with clothes and a hat during the summer months
apply sunscreen with a sun protection factor (SPF) of at least 15 before going out into the sun
try to stay inside or in the shade when the sun is at its strongest (between 11am and 3pm)
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