Unusual Rash: Starts as Large Hives, Becomes Swollen and Darker
I'm a 30-year-old female, weighing 170 pounds and standing 5'8" tall. While I'm not concerned about a severe health threat and don’t exhibit systemic symptoms, I find this unusual skin reaction troubling, as it seems to be more than just severe hives. My history includes allergies and asthma, both of which are generally well-managed with immunotherapy. Typically, when skin issues arise, they're minor signs, such as mild redness and itching or ordinary hives, without major complications. Recently, I experienced a skin reaction that began resembling unusually large hives. Within hours, it developed a vivid pink color, followed by darkening into a shade that nearly looked purple with some hints of brown, especially notable given my fair skin. Although it's hard to document in photographs, my partner commented that the swellings resemble golf balls beneath my skin, visibly protruding through my clothing. This has occurred on two separate occasions. The first episode was a dramatic reaction to scabies, which was challenging to diagnose due to its atypical appearance. This latest flare-up arose after sitting in a cafe chair for several hours, affecting the areas of skin that made contact with the seat. Initially, the rash was intensely itchy while seated but gradually transitioned to a more swollen and red state, accompanied by diminished itchiness. It's now been two days, and the rash is resistant to high doses of antihistamines (I’ve been taking 1 Allegra and 2 Zyrtec daily) and topical steroids like 1% hydrocortisone gel, showing no improvement and, in fact, worsening. Although there are no systemic symptoms present, I've chosen to postpone my scheduled allergy shot appointment for safety. I've taken several photos during both episodes, yet they fail to fully depict the rash’s severity. I consulted with my allergist, but unfortunately, an in-person appointment won’t be available soon, and he could only confirm that this isn't hives. I have two main inquiries: 1) Is there a specific name for this type of rash? How should I describe it effectively in the future? 2) What potential triggers could be causing this reaction at this time?
Answers (1)
7/31/2025, 1:50:46 AM
OpenHealth AI
It's understandable to feel worried about a skin reaction, especially when it appears to be unusual and is persistent. The description of your rash suggests it may be a type of urticaria (hives) or angioedema, possibly related to an allergic reaction or an irritant.
Explanation
-
Possible Rash Type: While you mentioned it doesn't resemble typical hives, the description of large, itchy swellings with color changes could indicate a form of angioedema or chronic urticaria. Angioedema involves deeper swelling, often resulting in the raised, golf-ball-like bumps you describe, which can occur independently of hives.
-
Triggers: The sudden flare-up after sitting could be due to physical pressure (dermatographic urticaria) or contact with allergens from the chair material (e.g., latex, cleaning agents), food residues, or even environmental factors like temperature changes. Stress or anxiety can also exacerbate skin reactions, though they are not direct triggers.
Next Steps
-
Symptom Monitoring: Keep a daily log of the rash, noting changes in appearance, any potential triggers (such as specific foods, materials in contact with your skin, or activities), and when you take antihistamines or apply treatments.
-
Topical Care: Continue using topical steroids as needed, but consider integrating a cooling lotion like aloe vera or calamine to help with irritation.
-
Avoidance: Identify and avoid any known allergens or irritants. If you suspect a specific material from the cafe chair, try to avoid similar settings or use protective clothing when sitting.
-
Consultation Follow-Up: Since you’re currently waiting for an in-person appointment with your allergist, consider calling their office to discuss the possibility of a telehealth appointment. They might be able to provide alternative treatments or insights without an in-person visit.
-
Consider Over-the-Counter Options: If there’s no improvement, you might consider asking your allergist about other options such as prescription antihistamines, leukotriene receptor antagonists, or even short-term oral corticosteroids which might be more effective for reducing severe inflammation.
If your symptoms worsen or new systemic symptoms arise (like difficulty breathing or swelling in the face/lips), seek immediate medical attention. Please ensure you share this detailed description during any consultations, as it can help healthcare providers assess your condition more accurately.
Related Questions
Concerns about Possible Hantavirus Exposure
Hello everyone, I'm an 18-year-old male from Michigan, and I recently had an experience that's been weighing on my mind. While cleaning out an old wooden box from my family’s barn for storage, I noticed it was coated with various white and black debris, possibly from bats and maybe even rodents. After my first interaction with the box, I promptly washed my hands; however, during my second attempt, I neglected to do so and likely touched my face several times afterward. At that moment, the thought of hantavirus didn’t cross my mind, but now I can’t shake my worries about it. It’s been a few days since then, and I've developed a dry cough and a scratchy throat, which I suspect are unrelated, especially since hantavirus symptoms typically take longer to manifest. Despite its rarity, this situation sure fits the profile for potential exposure, and I’m uncertain if I should be concerned about my health or if I should just let it go. I’m also curious why hantavirus cases are so infrequent in the northeastern United States. There are plenty of deer mice in my vicinity, and I know many people who often encounter these rodents and their droppings without issues—but they all seem to be okay. I would greatly appreciate any advice or insights on this; I’m feeling a bit anxious about the whole situation.
Tropical Getaway: Rash or Serious Condition?
29 years old, weighing 190 pounds, and currently prescribed thyroid medication (no recent changes to my prescription). I've developed a rash on my forearm that feels like a sunburn and is hot when touched; it has also started to develop small, clear blisters after applying hydrocortisone. This issue began around two days ago while I was enjoying a tropical getaway, and the rash has intensified in color since then, with the blisters appearing recently. Initially, I suspected it might simply be a sunburn or a possible allergic response to plants, yet something about it feels unusual. I recently used a new sunscreen and a fragrant lotion (infused with orange and bergamot - not sure if that matters?), but I would expect that if they were problematic, the irritation would show up in other areas aside from just my arm. As mentioned, I am currently on vacation, so I’m considering my options (seeking medical advice could be quite costly) and contemplating the implications of sun exposure on my condition.
Diagnosis of Strep A and Recommendations for Home Recovery
A 35-year-old female, measuring 5 feet 2 inches and weighing 137 pounds, presented with health concerns. She is a smoker and is currently on a medication regimen that includes Amoxicillin at 500mg three times daily, along with clonazepam, Prozac, Abilify, and Pepcid. Recently, she visited the emergency room due to experiencing an elevated heart rate and shortness of breath. Initial laboratory tests revealed a white blood cell count of 16.7, prompting further investigation. The respiratory panel came back negative, but the tests were positive for Strep A. After discussing the findings, the attending physician informed her that treatment with Amoxicillin would commence. She also received intravenous fluids as part of her care. Following treatment, her heart rate decreased from 115 beats per minute to 90. However, she remained febrile at the time of her discharge. The doctor advised that she must remain at home for a duration of two weeks, citing her elevated white blood cell count as a concern. She was instructed to have close follow-up appointments with her primary care provider to monitor her blood counts diligently. The doctor cautioned that contracting a cold, influenza, or COVID-19 during this time could significantly increase the risk of hospitalization, possibly lasting a week or more. It's important to note that she has no known chronic illnesses, including diabetes or any immune deficiencies. This raised her concern about the doctor's recommendation for an extended period of at-home rest. She is seeking clarification on whether this course of action is standard practice in similar situations.
Could This Be Eczema?
The subject in question is an 11-year-old boy who presents with a persistent itchy, red rash accompanied by inflammation and small bumps. Two pediatric specialists have diagnosed him with eczema. This condition seems to worsen during the winter months. In contrast, during the other seasons, the affected area appears rough and shows slight hyperpigmentation, but it remains free of redness and inflammation, and there are no symptoms during this time. Various treatments, including hydrocortisone, Duoderm, and Eucerin eczema lotion, have proven ineffective against the rash. For today, I have received a delivery from Amazon that includes Gold Bond medicated eczema relief lotion, white cotton gloves, and a non-soap hand cleanser. He is very particular about washing his hands after every restroom visit. I would appreciate your input and advice on whether I am on the right track with the treatment plan. Thank you for your assistance.
Is It Possible to Develop Allergies in Adulthood?
The concept of developing allergies later in life has been on my mind. A young woman I know, who is 22 years old, had no issues being near cats in her childhood. However, as she matured, she started exhibiting allergic reactions. Additionally, she used to enjoy strawberries without any problems, but recently she experienced swelling in her mouth after consuming a handful of them. To give you a bit of context, she stands at about 156 centimeters tall and weighs around 50 kilograms. It's noteworthy that she doesn't partake in alcohol, smoking, or any recreational drugs.