Unexplained Rash on Back
Greetings! I'm a 30-year-old woman, and I discovered a hive-like mark on my back about the size of a quarter six days ago. Initially, I might not have noticed it, but when I rolled over in bed, the movement caused it to pinch, resulting in quite a bit of pain. I hadn't engaged in any unusual activities or experienced anything out of the ordinary that could have triggered this reaction. Three days later, I checked the area and realized it was still red but appeared flatter. Now, after six days, the mark remains. It has become a bit more splotchy but is still quite evident. While it was painful on that first day, it hasn’t caused me any discomfort since, nor has it been itchy. I do have conditions such as POTS and EDS, but I'm unsure if they play a role here. I'm contemplating whether I should consult my primary care physician about this issue or if it can simply be considered an unusual reaction that isn't a cause for concern. Thank you for your assistance!
Answers (1)

7/4/2025, 12:30:52 AM
OpenHealth AI
It sounds like you're dealing with an unexplained rash on your back, which has changed over the past six days. Given your medical history of POTS and EDS, it’s understandable that you may be concerned about this rash and how it relates to your existing conditions.
Overview
The rash you describe could be due to various causes, including an allergic reaction, irritation, or even an idiopathic occurrence. Since it was painful initially but has since flattened and is not itchy, this may indicate it's not something that is severely problematic, but it’s still important to monitor.
Explanation
- Rash Characteristics: Hives or rash-like marks can appear due to a variety of triggers, including environmental factors, reactions to substances, or even underlying health conditions. The fact that it hasn't caused discomfort since the first day is a positive sign.
- POTS and EDS: Your pre-existing conditions might potentially influence skin reactions. Sometimes, connective tissue disorders like EDS can cause skin sensitivity or unusual reactions, so it’s worth considering how these conditions may play a role.
Next Steps
- Monitor the Rash: Keep an eye on the rash for any changes in size, color, or texture. Note if it becomes painful, itchy, or develops any new symptoms.
- Avoid Irritants: Keep the area clean and avoid applying any harsh products or irritants to the rash. Gentle soaps and moisturizers are best.
- Document Symptoms: Keep a record of the rash’s appearance and any other symptoms you might notice. This will be helpful if you decide to consult a healthcare provider later on.
- Consultation Consideration: If the rash does not improve within the next week, worsens, or becomes bothersome in any way, seeking advice from your primary care physician would be a good idea. They can examine the rash, consider your complete health history, and determine any necessary tests or treatments.
It's understandable to feel unsettled by unexplained health changes, so prioritize your comfort and well-being. Please let me know if you have further questions or need additional guidance.
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