Tratamentos para rosácea: qual é o certo para você?

What is rosacea?

If you've heard of rosácea, you may associate it with a red and flushed face, but consultant dermatologist Dr Jinah Yoo explains that it's so much more than that: "Rosacea is a long-term skin condition that is more common in women and in people with lighter skin."

Rosacea acne

"As well as causing coloured and flushed skin, rosacea can be itchy or painful, and spots can develop (acne rosacea) which may become inflamed. Rosacea generally develops gradually but can be a very difficult and embarrassing condition."

Other symptoms of rosacea include thickened skin around the nose, and eye problems (ocular rosacea) such as sore eyelids and dry eyes. Rosacea is a common problem, but most people have a mild form, and everyone experiences different symptoms.

This is not to say that rosacea is something to be complacent about - Dr Yoo warns that without treatment, it can become more severe.

O que causa a rosácea?

Experts aren't sure of the exact cause, although there are several theories:

• Sun damage may cause tiny blood vessels under the skin to burst or leak.

• Inflammation could be triggered by an abnormal immune system reaction in the skin.

• Inherited genes may give you a higher chance of developing rosacea, as it might run in families.

• Tiny mites called Demodex folliculorum may be involved - these live on many people's skin but are found in higher numbers in people with rosacea.

What is the best treatment for rosacea?

Unfortunately, there is no miracle cure for rosacea, but don't lose hope - rosacea treatment can ease irritability and drastically improve your skin's appearance. The best rosacea treatment for you will depend on the symptoms you have and how severe they are.

Self-help measures

No matter your symptoms or prescribed rosacea treatment, there are a few key steps you can take to try to make your rosacea more manageable. These include:

• Avoiding your triggers - eg, limiting spicy food, reducing alcohol, gerenciar o estresse, e wearing sun protection.

• Establishing good skincare - eg, using a high SPF (sun protection factor) sunscreen, avoiding fortes, e usando produtos faciais hipoalergênicos e sem perfume.

• Following good eye hygiene if rosacea is causing eye problems - eg, warming, massaging, and cleaning your eyelids daily.

Best for: rosacea spots and cysts

Raised red bumps (papules) and pus-filled cysts (pustules) look similar to cicatrizes de acne. Papules and pustules can come and go in some people or remain long-term in others. Discuss with your doctor best options, as all treatments need a prescription.

Tratamentos tópicos - sintomas leves a moderados

O quê: Exemplos incluem:

• Metronidazole cream or gel - a topical (rub-on) antibiótico that reduces inflammation in the skin.

• Azelaic acid cream or gel - an alternative to antibiotic lotions that also tackles inflammation.

• Ivermectin cream - works by killing the mite Demodex folliculorum and reduces some of the inflammation.

Modo de preparo: Most topical treatments will need to be massaged into your skin once or twice a day.

Effectiveness: Studies show that topical treatments such as ivermectin can effectively improve papules and pustules, but only if you remember to apply them as frequently as directed¹.

Possible side effects:

• Uma sensação de queimação ou ardência.

• Coceira.

• Pele seca.

Antibiotic tablets - moderate to severe symptoms

O quê: Exemplos incluem:

• Tetracycline.

• Oxytetracycline.

• Doxycycline.

• Erythromycin.

As with topical antibiotics, it is not clear why oral antibiotics work but experts believe it's because certain antibiotics are anti-inflammatory.

Modo de preparo: Most oral antibiotics will need to be taken once or twice a day.

Effectiveness: You may see a visible improvement after 2-3 weeks and find that spots and cysts clear at around 6-12 weeks.

Possible side effects:

• Diarreia.

• Náusea.

• Vômito.

• Inchaço.

• Indigestão.

• Dor de barriga (abdominal).

• Perda de apetite.

• Increased sensitivity to sunlight and artificial lights.

Comprimidos de isotretinoína - sintomas graves

O quê: If your symptoms are severe, you might be prescribed isotretinoin by a dermatologist. This works by reducing redness and natural oil (sebum) that contributes to spots.

Modo de preparo: Most isotretinoin tablets will need to be taken once or twice a day.

Effectiveness: A course of isotretinoin can significantly improve or completely clear rosacea spots and cysts².

Possible side effects:

• Dor de cabeça.

• Pele seca, lábios e narinas.

• Inflamed eyelids (blefarite) ou olhos (conjuntivite).

• Joint, muscle, or dor nas costas.

• Changes in your mood.

• Blood in your urine (haematuria).

• Defeitos congênitos se tomado durante a gravidez.

Best for: rosacea eye problems

Rosacea causes eye problems (called ocular rosacea) in roughly half of all cases. Fortunately, these symptoms are usually mild. However, if symptoms are severe and won't go away with the common treatments below, you may be referred to an eye specialist.

Eye drops - mild to moderate symptoms

O quê: If you have dry eyes, using eye ointments or artificial tears can help to keep them lubricated.

Modo de preparo: Artificial tears come in the form of eye gels or drops, and you can use them every hour until your symptoms improve, and then decrease to 3-4 times a day. Eye ointments should only be used before bedtime, as they may make your vision blurry.

Effectiveness: Both eye ointments and artificial tears are standard treatments for ocular rosacea and are usually very effective³.

Possible side effects:

• Artificial tears - some contain preservatives that can damage the front of your eye (the cornea) when used long-term.

• Eye ointments - can prevent other eye drops from working.

Antibiotic tablets - moderate to severe symptoms

O quê: If you develop eye inflammation (blepharitis) and the other treatments aren't helping, then your doctor may prescribe a course of antibiotic tablets.

Modo de preparo: Most oral antibiotics will need to be taken once or twice a day, usually for three months.

Effectiveness: Current evidence is mixed, and further research is needed to determine just how effective this rosacea treatment is⁴.

Possible side effects:

• Erupção.

• Migraine headache.

• Náusea.

• Vômito.

• Diarreia.

• Dor de barriga.

• Sun sensitivity.

• Perda de apetite.

Best for: rosacea nose

In some people with rosacea the skin of the nose can become thickened, bumpy, and red (known as rhinophyma). If this is causing you stress and affecting your daily life, the best rosacea treatment for you could be laser or surgical intervention.

Tratamento a laser e cirúrgico

O quê: These procedures trim back excess tissue and remodel your nose into a more pleasing shape (a technique called dermabrasion).

Modo de preparo: This may be done with a scalpel, a laser, or specialist abrasive instruments.

Effectiveness: There are many techniques to remodel your nose. Many experts believe that using more than one in the same sitting can lead to the most improvement⁵.

Possible side effects:

• Scarring.

• Hypopigmentation (patches of lighter skin).

• Temporary redness.

Best for: rosacea facial redness

Facial redness (eritema), visible blood vessels (telangiectasia), and flushing are common marks of rosacea. Unfortunately, they are harder to treat.

"There isn't an effective medical treatment for the redness associated with rosacea. Lasers such as the Clarity II from Lutronic are the best treatment here," advises Dr Yoo.

Laser and intense pulsed light (IPL) treatment

O quê: During IPL or laser therapy, beams of light target the visible blood vessels that are causing the redness. This can destroy them or cause them to shrink without damaging nearby tissue.

Modo de preparo: You may need between two and four treatments.

Effectiveness: Both laser an IPL therapies are effective at reducing rosacea redness, and one does not appear to be a superior method to the other⁶.

Possible side effects:

• Pain or discomfort during procedure.

• Hematomas.

• Formação de crostas na pele.

• Swelling and redness.

• Blistering.

• Infecção.

Leitura adicional

1. Sahni, Feldman and Taylor "Ivermectin 1% (CD5024) for the treatment of rosacea".

2. Rademaker "Very low-dose isotretinoin in mild to moderate papulopustular rosacea; a retrospective review of 52 patients".

3. Schallerm et al "Rosacea treatment update: recommendations from the global ROSacea COnsensus (ROSCO) panel".

4. Onghanseng et al "Oral antibiotics for chronic blepharitis".

5. Daoud et al "Rhinophyma: Combined Surgical Treatment and Quality of Life".

6. Handler, Bloom and Goldberg "IPL vs PDL in treatment of facial erythema: A split-face study".