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What Causes Random Red Streaks On Body Despite Having Normal Blood Reports?

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Posted on Fri, 28 Aug 2015
Question: For the past 4-5 weeks, there have been random red streaks on my body. It started on my mid-back as several really big streaks (5-6 inches long, ¾ inch thick; see images below). They would fade away in 3-4 days and reappear elsewhere, though everything has been isolated to my upper body – chest, mid-back, and upper arm. The ones on my chest and upper arm are sometimes more spotty than streaky. Nowadays, the streaks are thinner (1 inch long, 2mm thick) and less red.

I've been to a hematologist as well as a dermatologist. Blood tests (CBC, platelets, and sed rates, SMA 12) are normal.

Other notes:
- 23 years old, male, healthy
- Before this happened, I did have some skin issues / heat rash and used Cloderm for about 2 weeks
- No trauma, injury, or bleeding
- It doesn't itch
- The streaks / spots are flat (no swelling); they appear to be under the top layer of my skin
- No known allergies


More images from the past weeks (putting it on Imgur so you know the links are safe):

- Back 1 (initial): http://imgur.com/ryQoWNR
- Back 2: http://imgur.com/fAjxUPE
- Front: http://imgur.com/IuM7Lt4
- Arm (inner): http://imgur.com/JxxARHF
- Side: http://imgur.com/Vl1Km1l

Does anyone know what this might be?

Thanks in advance!
doctor
Answered by Dr. Neel Kudchadkar (8 hours later)
Brief Answer:
Idiopathic Rash: Watchful Waiting.

Detailed Answer:
Hi!

The streaks of rash that you are describing are due to either an unknown allergy or due to a drug interaction. They can also be due to weather conditions. This is true because they are definitely not due to trauma, nor are they a result of bacterial or viral infection, and indeed you have had issues in the past where you might have resorted to using cloderm, a cream to palliate the rash. Therefore, the best solution is to wait and watch. You can feel secure as the rash is not something serious, nor is it a sign of an underlying serious disease, for example, kaposi's sarcoma as in HIV/AIDS.

I would like your opinion on this matter. Kindly write back, we might discuss some therapeutic alternatives if you should so wish them. Your question was on what this rash might be, I mean the probable diagnosis.

Thanks,
Dr. Neel Kudchadkar
Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
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Follow up: Dr. Neel Kudchadkar (2 days later)
Thanks Dr. XXXXXXX My rashes had been over 75% healed when the streaks appeared, so I wasn't sure if they were related (I haven't used Cloderm in 5+ weeks ). I'm more concerned about the streaks than the rash at this point. So to clarify, you don't believe the streaks are anything serious?

Regards, XXXXXXX
doctor
Answered by Dr. Neel Kudchadkar (2 days later)
Brief Answer:
The streaks are due to an allergic reaction. They are not harmful.

Detailed Answer:
Hi!

The streaks are a natural reaction to histamine released in your body. Let me give you an example. It is called as the XXXXXXX triple flare reaction. If a fingernail is drawn across the skin, then there is a red streak created. This is one way to excite the histamine molecules. The most probable diagnosis is secondary release of histamine to your rashes or due to an unknown allergic stimulus. Many people do not even know that they may be allergic to a certain food or item. Thus, these streaks as described by you fit the picture. They are indeed nothing serious and will abate. May I inform you that when the allergic stimulus occurs again, they may resurface.

Indeed the streaks are related to the rash.

Thanks,
Dr. Neel Kudchadkar
Above answer was peer-reviewed by : Dr. Shanthi.E
doctor
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Follow up: Dr. Neel Kudchadkar (3 days later)
Thanks Dr. XXXXXXX I'll keep an eye out and see if I can figure out what it is.

For me, the spots are flat against my skin; they're not bumpy. And I've tried scratching myself with my nails and it doesn't cause those streaks.
XXXXXXX
doctor
Answered by Dr. Neel Kudchadkar (2 hours later)
Brief Answer:
Streaks: Normal and natural event. Try anti histamines for relief.

Detailed Answer:
Hi!

That's a pretty smart question. I gave you a textbook example of the XXXXXXX Triple Flare reaction to demonstrate to you how the skin can get reddened even if we use a fingernail on it. This is not the case with you. I know this for a fact and you have corroborated here. The fact of the matter is that the streaks are caused due to release of chemicals in the body called as histamine and bradykinin among dozens of others. These chemicals are released as a defence against events like rash. As I repeat, with assurance, indeed the streaks are a response to the rash or a "stimulus" that releases these chemicals. Unfortunately though, the system may wish well, but such streaks can be annoying. Let me illustrate, Fever, for example is a defence reaction of the body to protect itself. However fever is unpleasant and annoying.

The best defense against this is palliation, meaning treating the streaks, by a temporary drug.
It will abate them, but not cure them forever since the mechanisms responsible for the streaks are a part and parcel of how your body works.

Maybe you might try some anti histaminic tablets. They would most certainly work. The annoying streaks would subside. Neither are these drugs addictive, nor do they produce unacceptable side effects. Most are available over the counter without a prescription in most states.

I'm pretty confident that this will work out for you.

Thanks,
Dr. Neel Kudchadkar
Note: Hope the answers resolves your concerns, however for further guidance of skin related queries consult our Dermatologist.Click here to book a consultation

Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
Answered by
Dr.
Dr. Neel Kudchadkar

General & Family Physician

Practicing since :2004

Answered : 532 Questions

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What Causes Random Red Streaks On Body Despite Having Normal Blood Reports?

Brief Answer: Idiopathic Rash: Watchful Waiting. Detailed Answer: Hi! The streaks of rash that you are describing are due to either an unknown allergy or due to a drug interaction. They can also be due to weather conditions. This is true because they are definitely not due to trauma, nor are they a result of bacterial or viral infection, and indeed you have had issues in the past where you might have resorted to using cloderm, a cream to palliate the rash. Therefore, the best solution is to wait and watch. You can feel secure as the rash is not something serious, nor is it a sign of an underlying serious disease, for example, kaposi's sarcoma as in HIV/AIDS. I would like your opinion on this matter. Kindly write back, we might discuss some therapeutic alternatives if you should so wish them. Your question was on what this rash might be, I mean the probable diagnosis. Thanks, Dr. Neel Kudchadkar