Your Year of Health · July
Skin Health
Your skin is your body’s largest organ and its first line of defense — a living barrier that protects you, regulates temperature, and reflects what’s happening inside.
Skin cancer is the most common cancer in the U.S., yet it’s largely preventable and highly curable when caught early. A little sun sense and a few minutes of self-checks go a long way, and your primary care office can help.
The Basics
What does your skin do?
Your skin is the body’s largest organ and its first line of defense — a waterproof barrier that keeps moisture in and germs, UV light, and irritants out. It also regulates your temperature, lets you feel touch, and helps make vitamin D. Caring for it is genuine health protection, not just cosmetics.
Why is skin care worth the attention?
Healthy skin guards against infection and often reflects what’s happening inside the body. And because skin cancer is the most common cancer — while also being largely preventable and highly curable when caught early — a little routine care and awareness pays off enormously.
Sun & Skin Cancer
How does the sun damage skin?
Ultraviolet (UV) light from the sun — and from tanning beds — damages the DNA in your skin cells. Over time that causes premature aging (wrinkles and spots) and is the main cause of skin cancer. The damage accumulates over a lifetime, and a tan is itself a sign of injury, not health.
How do I protect my skin?
- Seek shade, especially between 10 a.m. and 4 p.m.
- Use broad-spectrum sunscreen SPF 30+, and reapply every two hours and after swimming or sweating.
- Cover up — hat, sunglasses, long sleeves, or UPF clothing.
- Avoid tanning beds entirely.
- Take extra care near water, snow, and sand, which reflect UV.
Know your ABCDEs of melanoma
Check moles for Asymmetry, irregular Borders, uneven Color, Diameter larger than a pencil eraser, and Evolving — changing in size, shape, or color over time. Any new, changing, or unusual spot deserves a look from a doctor.
Common Conditions
Acne
Common at any age, acne comes from clogged pores and oil and ranges from occasional breakouts to persistent flares. Many effective treatments exist, from over-the-counter options to prescription.
Eczema & dry skin
Itchy, inflamed, or dry patches that often flare with irritants, weather, or stress. Gentle moisturizing and avoiding triggers help, and prescription creams handle stubborn cases.
Psoriasis
An immune-driven condition that causes thick, scaly patches. It’s chronic but very treatable, and it can be linked to joint and heart health, so it’s worth managing with a doctor.
Rashes, infections & moles
From fungal and bacterial infections to allergic rashes and changing moles, most skin issues can be diagnosed and treated — and they’re worth checking rather than guessing at.
Daily Skin Care
A simple routine protects most skin and keeps it comfortable:
- Use sunscreen daily, even when it’s cloudy.
- Cleanse gently — skip harsh scrubbing and very hot water.
- Moisturize, especially after bathing, to support the skin barrier.
- Stay hydrated and eat a balanced diet.
- Don’t smoke — it ages skin and slows healing.
- Avoid tanning beds.
- Check your own skin regularly so you notice changes early.
Skin & Your Health
Can skin signal other health problems?
Yes — the skin is a window to the body. Yellowing can point to liver issues, unusual rashes can signal allergies, infections, or autoimmune disease, and very dry or changing skin can reflect thyroid or other conditions. New or persistent changes are worth mentioning to your doctor.
Does lifestyle really affect skin?
Absolutely. Sun exposure, smoking, sleep, stress, and diet all show up in your skin over time. Protecting it is one of the most visible payoffs of healthy habits.
When to Get Help
See your doctor for a new, changing, or non-healing spot or mole; a rash that’s spreading, painful, or not improving; persistent acne, eczema, or psoriasis affecting your comfort or confidence; or any growth you’re unsure about. Your primary care office can evaluate and treat many skin conditions and refer you to a dermatologist when needed. If you have risk factors — fair skin, a lot of sun exposure, many moles, or a family history of skin cancer — ask about regular skin checks.
When in doubt, get it checked.
Skin cancer is highly curable when it’s found early. A new, changing, or unusual spot — or a sore that won’t heal — is always worth a quick look. Don’t wait for it to hurt; most skin cancers don’t.
Useful Links
Talk it through with Dr. Mui
Skin concerns are part of routine primary care. Book a visit to have a spot checked, treat a stubborn condition, or set up regular skin checks if you’re at higher risk.
Prefer to ask first? Text Dr. Mui at 617-675-4085.
This page is for general education and isn’t a substitute for professional medical advice, diagnosis, or treatment. Always talk with a qualified health provider about your specific situation.