The Dermatology Blog

There are some lucky people who don’t get poison ivy or oak. If you’re like me, you do. Here are some poison plant pointers:

Ivy block cream prevents poison ivy or oak, but only if it is applied 15 minutes before exposure. It doesn’t work after you’ve been exposed.

The intensely itchy, sometimes frighteningly-bubbly rash is an allergic reaction to oil, urishiol, found on poison ivy, oak and sumac plants.

You can wash off the oil with soap and water. Do not use laundry detergent, alcohol, or expensive poison ivy soap — any ordinary bar of soap will wash off the oil. However, the oil is quickly absorbed into your skin, like olive oil into nice piece of Italian bread, so time is of the essence. Once the oil is absorbed in your skin, you cannot get it out no matter what you use.

• You can wash off 50% of the oil within 10 minutes
• You can wash off 10% of the oil within in 30 minutes
• After 1 hour, no amount of washing will make any difference. Nothing will prevent the soon to be rash.

Whatever you do, don’t touch your groin in the first hour or so. You could end up in the hospital; I’ve seen it.

After one hour, you cannot spread poison ivy to someone else. Scratching or breaking the water blisters does not spread the poison ivy or the rash.

The rash lasts for 2 weeks, sometimes less if it is not severe. No cream or treatment, however expensive, can shorten the duration. The rash must run its course.

Once your arms and face turn into wet tapioca pudding, use a drying astringent like Domboro soaks to dry it out.

Once the blistering dries up, apply a topical steroid like hydrocortisone 1% cream or anti-itching lotions like topical Calamine or Benadryl. Cool baths with collodial oatmeal will also help. Super hot showers will relieve the itching, but only temporarily, and in the end, only makes it worse.

If you have a severe case of poison ivy, defined by your mother doesn’t recognize you or you are unable to sit, stand, or lie down, then see a dermatologist for prescription drugs to help.

Photo: Jim Frazier (flickr)

Post by Dr. Benabio, copyright The Derm Blog 2009.

Last week one of my patients complained that she gets facials every month for her wrinkles, but that she still has prominent wrinkles around her eyes and mouth. “What,” she asked, “is she doing wrong?”

Facials are the third most popular treatment in spas after nails and massage. They come in many flavors like: mineral masks, steam treatments, microdermabrasions, LED light treatments, blu-light, and even oxygen facials.

Facials can be beneficial; they extract clogged pores, exfoliate dull, scaly skin, and give you a deep, invigorating cleansing, leaving your face smooth and silky. But facials cannot treat wrinkles, broken blood vessles, or brown spots.

Facials are done by aestheticians who are not licensed to practice medicine. Aestheticians cannot administer treatments that penetrate the skin or have  biologic effects (by definition, this would be considered medicine and must be administered by a licensed practitioner such as a physician or registered nurse).  Deeper problems such as wrinkles require invasive treatments which cross the line from cosmetics to medicine.

Facial massages or electrostimulations, which are supposed to tone your skin, don’t. Toning or building muscle requires intense and repeated activity. Just like building biceps, firming musles on your face would require working out. The problem is that wrinkles on your face are caused by contracting muscles — crow’s feet are caused by contracting muscles around your eyes; frown lines are caused by furrowing your brow; lip lines are caused by contracting the muscles around your mouth. Any treatment then that firms facial muscles would only make wrinkles worse.

Other treatments such as oxygen facials and mineral treatments have no evidence to support them, (unless you count “Madonna said so” as evidence). Save your money and have your daughter apply a mud mask the next time you go to the beach.

Photo: Arkansas Shutterbug (flickr)

It is a medical breakthrough. No, not a cure for cancer, but for the short lashed. The FDA has approved a prescription medication that makes your eyelashes grow.

We have known for years that prostaglandin medications used to treat glaucoma have an interesting side effect –they make patients’ eyelashes grow. Now a prescription drug is available that is specifically for treatment of hypotrichosis of the eyelashes, (which means sparse lashes).

Eyelashes are hair, just like the hairs on your head and legs. Not all hairs are created equal though; eyelashes are designed to grow a certain (short) length, then stop. The number and thickness of your lashes is determined by your genetics.

Latisse (bimatoprost opthamlic solution 0.03%) is a prescription drug made by Allergan, the makers of Botox. It’s a prostaglandin, an active biologic compound named after the prostate gland, the first place they were found. Latisse has been shown to increase the number, thickness, and darkness of lashes.

Latisse can be applied to the upper eyelashes only and should not be applied directly into the eye. It takes about eight weeks to notice results, and it can take 16 weeks to see the full effects of the drug. Unfortunately, you have to continue using Latisse to maintain the results; if you stop using it, then your eyelashes will go back to the way they were before you started treating them.

Side effects of using Latisse include disoloration of your eyelid. Fortunately this appears to be reversible; the color fades when affected people stop using it. Latisse can also cause darkening of the iris in your eye. Your eye color is genetically determined, but medications can change the color. Latisse might cause increased brown pigmentation of your iris. This side effect, unlike the darkening of your eyelid however, is permanent.

Latisse costs about $120 dollars a month and, of course, is not covered by health insurance. It is apparently already popular among the celebrity crowd: reports say Jenny McCarthy has been using it.  The question is how long will it be before someone starts applying it to their eyebrows? I could be the poster boy.

Photo: Nicholas Kenrick (flickr)

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“Those lips that Love’s own hand did make”

Shakespeare is referring to lips that the goddess of Love crafted with her own hands. Lips have always been an important feature in beauty, across time and cultures. Smooth, full lips can be attractive suggest youth and sensuality. Because we look at lips when people talk, they are a prominent feature on the face. Here are 5 tips to have beautiful lips. Read more…