Reply to oldtimer
Hello,
My wife has this. Started about 2 years ago. She was getting red, raised scratches on her back, and numerous raised red blotches on her chest and stomach. It looked really bad. After taking off her bra, an hour later her skin looked normal. We thought she was allergic to .....something? Her tongue would swell up slightly too. I bought a couple of Epi Pens just in case she went into anaphylaxic shock.
After many visits to dermatologists and an allergist, it was determined she has Dermatographia, or skin writing. Dermatographism, dermatographic urticaria are other names for dermatographia. It's fairly common.
It's a harmless skin condition. Raised marks (wheals), similar to hives appear when your skin is rubbed (friction) or has pressure on it.
Dermatographia welts don’t hurt, but they can be itchy. Usually fade after about 30 minutes.
Dermatographia symptoms vary from person to person. Symptoms may include:
• Raised, discolored (red, pink, purple or skin color) lines.
• Swelling.
• Inflammation.
• Hive-like welts.
• Itchy skin.
Dermatographia may be an autoimmune disease. Medical researchers think it might be an inappropriate response from your immune system. Your immune system registers scratching or pressure as an allergen. It sends the chemical histamine to the area to remove the allergen from your body.
Dermatographia isn’t contagious, and symptoms usually fade after months or years.
It's been 2 years for my wife. Her symptoms are still strong. She had to get bra's that have no elastic. Wear loose clothing. Stop wearing her neck chain with a cross pendant on it. She can't sit back in chairs. Sleeps on her side with loose pajamas. Has to be careful washing and showering. Rubbing soap on skin will cause a flare up. Also has to dry off carefully, no rubbing with the towel.
She takes lots of antihistamines. Up to 4 a day. This helps prevent itching and some of the welts.
A prescription medication is available, Cromolyn, which helps block allergic reactions. But she has not tried it.
Simple test. Use a tongue depressor or popsicle stick. Press into the skin, create a 3 to 6 inch line. Wait to see if a raised welt appears.