How to Determine if Your Skin Rash is Scabies: Key Signs and Symptoms - Dermatology

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Unsure if it is scabies?


I have rashes on my arms (most), on the back of my hands (occasionally), on my abdomen (a small number of rashes), on my thighs (quite a few rashes), and underneath my breasts (I don't see any rashes, but it's quite itchy; if I were to rate it from one to ten, it would be around six).
I used to work in a hospital where there were many patients with scabies, and I had contact with them while wearing gloves.
Initially, I only had rashes that weren't itchy, but after a few weeks, they became very itchy.
My family occasionally sleeps in the same bed with me, and they say they caught it from me.
However, I don't see any signs that look like scabies on my skin.
After a while, they stopped sleeping with me, and the rashes on my body decreased and were no longer itchy.
A few days ago, they came back home and slept with me again, and after they left, I covered myself with my usual blanket, and recently the rashes have increased and are itchier.
How can I determine if it is scabies?

Ci Ci, 10~19 year old female. Ask Date: 2017/01/02

Dr. Wu Yuxin reply Dermatology


Without actually seeing the lesion, it is impossible to determine.
If it is very concerning, please seek medical attention as soon as possible.

Reply Date: 2017/01/02

More Info


Determining whether your skin rash is caused by scabies can be challenging, especially since the symptoms can overlap with other skin conditions. Scabies is a highly contagious skin infestation caused by the Sarcoptes scabiei mite. Here are some key signs and symptoms to help you assess your situation:
1. Itching: One of the hallmark symptoms of scabies is intense itching, particularly at night. You mentioned that your rash is itchy, rating it a 6 out of 10. While this could indicate scabies, itching alone is not definitive, as many other conditions can cause similar symptoms.

2. Rash Appearance: Scabies typically presents as a rash with small red bumps, blisters, or pimple-like irritations. The rash often appears in specific areas, such as between the fingers, on the wrists, elbows, armpits, buttocks, and genital area. You noted that your rash is primarily on your arms, thighs, and abdomen, which could align with scabies, but it is not exclusive to it.

3. Burrows: A key feature of scabies is the presence of burrows, which are tiny, thread-like lines in the skin where the mites have tunneled. These burrows can be difficult to see but are often found in the webbing between fingers or on the wrists. If you do not see these burrows, it may be less likely that your rash is due to scabies.

4. Duration and Spread: Scabies symptoms can take several weeks to appear after initial exposure. You mentioned that your rash started with minimal itching and has become more pronounced after sleeping with family members. This pattern of worsening after close contact could suggest scabies, especially if they have been diagnosed with it.

5. Response to Treatment: If you have tried over-the-counter treatments for itching or rashes without improvement, this may indicate that the underlying cause is not a simple allergic reaction or irritation. Scabies requires specific topical treatments (like permethrin cream) or oral medications (like ivermectin) to eradicate the mites.

6. Family History and Close Contacts: Since you have been in close contact with family members who may have scabies, this increases the likelihood of transmission. If they have been diagnosed or treated for scabies, it is essential to consider this in your assessment.

Given your symptoms and history, it would be prudent to consult a healthcare professional for an accurate diagnosis. A dermatologist or primary care physician can perform a physical examination and may take skin scrapings to check for mites under a microscope. They can also provide appropriate treatment if scabies is confirmed.

In the meantime, avoid close contact with others to prevent potential spread, and refrain from scratching the affected areas to minimize the risk of secondary infections. Keeping your living environment clean, including washing bedding and clothing in hot water, can also help reduce the risk of transmission.

In summary, while your symptoms could suggest scabies, a definitive diagnosis requires a medical evaluation. It’s essential to seek professional advice to ensure proper treatment and management of your condition.

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