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Doctor insights on: Rashes From Spider Bites

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Dr. John Chiu
2,673 doctors shared insights

Rash (Definition)

A skin rash is a symptom in which a person has changes on part or all of his skin, such as color changes, bumps, blisters, oozing, peeling, ...Read more


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My mom had a rash under her arms that looked like spider bites what is it?

My mom had a rash under her arms that looked like spider bites what is it?

RASH IN ARMPITS: Without seeing the rash, it's difficult to make an accurate diagnosis. This sounds like a rash due to either a new sweater or blouse, or an underarm deodorant or a new soap, or new laundry detergent. Warm water compresses, a mild cleanser like cetaphil, and an over-the-counter Hydrocortisone cream, twice daily might giver some relief. If no better, have her examined by a dermatologist. ...Read more

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Have been exposed to very early stage shingles. Need to help out with newly born and 4yr old grandsons. Is it ok? On thanksgiving I was with my sister when she just thought her shingles were spider bites. No rash yet or oozing. On monday her dr confirm

Have been exposed to very early stage shingles.  Need to help out with newly born and 4yr old grandsons.  Is it ok? On thanksgiving I was with my sister when she just thought her shingles were spider bites.  No rash yet or oozing. On monday her dr confirm

Shingles : Shingles cannot be passed from one person to another. However, the chicken pox virus that causes shingles is contagious to another person if the other person has not had chicken pox. But, you will not or another person will not get chicken pox from your sister unless you were directly exposed to the lesions. If your sister had the area covered and washed her hands and you did not get exposed to the actual lesions you should be fine. ...Read more

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My sister has a rash that looks like it might've started out as a spider bite. Can some bites form rashes that spread quickly?

My sister has a rash that looks like it might've started out as a spider bite. Can some bites form rashes that spread quickly?

Abscess?: If there is any evidence of pus or an abscess this needs to be seen urgently. And, any spreading rash should be evaluated in person urgently. ...Read more

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How long does a spider bite rash last?

How long does a spider bite rash last?

It depends: It depends on which kind of spider did the biting. ...Read more

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How long does long spider bite rash last for?

How long does long spider bite rash last for?

See below: Unfortunately this depends on the type of bite. But generally speaking, insect bites that are not significantly venomous should heal within about 2-3 weeks. ...Read more

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I have a rash that developed from what I believe to be a spider bite. Is this serious?

I have a rash that developed from what I believe to be a spider bite. Is this serious?

Infected?: If the site is infected or you have significant reaction medical attention is necessary. How long ago did the bite occur? Spider bites can vary from a localized reaction to an infection to severe reaction with certain spiders. If you can identify spider provide that information to doctor. ...Read more

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Should I be worried if I have a rash that developed from what I believe to be a spider bite?

Should I be worried if I have a rash that developed from what I believe to be a spider bite?

Yes and no: This all depends on how long it was since you had the bite, is the rash warm, painful or expanding? These are usually signs to worry about regardless of an insect bite or not. ...Read more

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Spider bite with peeling rash, how should I treat it?

Spider bite with peeling rash, how should I treat it?

Observe: If no pain, spreading, or pus, time will heal it. If you do have one of the above symptoms, see your doctor to make sure that it has not been infected. ...Read more

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I have a weird rash on my arm at first it looked like a spider bite but after that it looks worse it's been there for a couple weeks now?

I have a weird rash on my arm at first it looked like a spider bite but after that it looks worse it's been there for a couple weeks now?

Rash: Oftentimes patients think a rash may be from a spider bite but there was not a witnessed bite. This oftentimes is a skin infection from a bacterium called MRSA. This can be treated with the appropriate antibiotics. ...Read more

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I have been getting a rash on ankles since in malawi for 2 yrs. It was diagnosed as spider bite but returned since home for 6 months. Wat is it?

I have been getting a rash on ankles since in malawi for 2 yrs. It was diagnosed as spider bite but returned since home for 6 months. Wat is it?

Allergic dermatitis: This could be some form of allergic dermatitis that is caused when you come in contact with something for a long time. The possiblity of a bite is still present. See your doctor or podiatrist for a more definitive answer. ...Read more

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My boyfriend has a strange rash on his elbow, swollen and painful, over 12 hrs. Looks like a spider bite but not sure. Thoughts?

My boyfriend has a strange rash on his elbow, swollen and painful, over 12 hrs. Looks like a spider bite but not sure. Thoughts?

Bite: It may be a spider bite, but then again, it could be a bite from a hornet, wasp or bee. Sight unseen it is difficult to render a dianosis. ...Read more

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Which type of spider bite will cause a rash vomiting and fever?

Which type of spider bite will cause a rash vomiting and fever?

Any of the Following: Envemonation from a black widow leads to fever and vomiting. A loxosceles bite leads to scarlatiniform rash. A bite from a tarantula leads to v. ...Read more

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What kind of spider bite will cause a rash, vomiting, and fever?

What kind of spider bite will cause a rash, vomiting, and fever?

Recluse or infection: Brown recluse bites can cause: morbiliform rash, fever, chills, nausea, vomiting, joint pain, renal failure, seizures and coma (the last symptoms mentioned here are rare). But any infected bite can cause fevers, vomiting and sometimes rashes. Seek physician care for this if it occurs. ...Read more

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Got a rash or irritation on back. It's a couple inches in spot, kind of blistery. Allergic reaction? Spider Bite? Mild pain/discomfort on it.

Got a rash or irritation on back. It's a couple inches in spot, kind of blistery. Allergic reaction? Spider Bite? Mild pain/discomfort on it.

Hard to tell!: Without seeing the rash it is difficult to make a diagnosis. Herpes zoster (shingles) is often associated with this type of rash with pain. You may see your doctor to confirm. ...Read more

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I have a rash on my leg. Thought it was from a mosquito bite, but now its swollen and red and I m afraid it's a spider bite. Could you take a look?

I have a rash on my leg. Thought it was from a mosquito bite, but now its swollen and red and I m afraid it's a spider bite. Could you take a look?

Not a spider: There are no venomous spiders in NY. Unless you saw and felt the spider attack you know it is something else. There are hundreds of different causes for a rash on your leg. Does it itch? How long? The Best result will be obtained by a trip to a dermatologist. Meanwhile, you can try hydrocortisone cream. ...Read more

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2 months ago rash with hard black center. No MRSA, CBC normal, doc said spider bite. Rash gone but hard red lump still there. What else could it be?

2 months ago rash with hard black center. No MRSA, CBC normal, doc said spider bite. Rash gone but hard red lump still there. What else could it be?

Find a better doc.: You are not describing a spider bite. Venomous spiders are found almost exclusively in the south-western USA. Even there they rarely attack humans. Where do you live? Is it itchy or painful? If it annoys you, see a dermatologist. ...Read more

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My boyfrirnd has a rash in groin area and under armpit he also has been on antibiotics for mrsa and pnemonia caused by a spider bite that had necrosis?

My boyfrirnd has a rash in groin area and under armpit he also has been on antibiotics for mrsa and pnemonia caused by a spider bite that had necrosis?

A lot to consider: MRSA is a type of bacteria, not a diagnosis. Does he have a MRSA pneumonia? How is that related to a brown recluse spider? Which antibiotics delivered how, at what doses, for how long? He must have been very ill. Sounds like he has monilial intertrigo related in part to antibiotics. If this is the case, he will improve with miconazole cream, Castellani's solution, and a single dose of oral flucona ...Read more

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How to heal spider bites?

How to heal spider bites?

Rapid Healing: The real question is what not to do that slows down healing. Avoid using alcohol, peroxide, hibiclens, betadine, and bleach solutions. Inflammation (red, hot, swollen, tender) is important to healing so anti-inflammatories (motrin, advil) are bad. Cover the area with a clean dressing changed every other day and protected from trauma. Antibiotics do not help healing unless it is truly infected. ...Read more

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Can you die from spider bites?

Can you die from spider bites?

Not usually - but: Possible if allergic. A black widow bite can cause pain that spreads to chest, abdomen or back which may be associated with abdominal cramping. There may be intense sweating near the wound or involving an effected extremity. Brown recluse spider's bite can cause no reaction, a mild reaction, an immediate or a delayed reaction. With a significant reaction a which blister appears after bit. The > ...Read more

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Is stingose good for spider bites?

Is stingose good for spider bites?

No: If they are true spider bites, they require serious attention. If you did not see ; feel the spider it was something else. Sometimes minor irritations or insect bites are casually passed of as spider bites without any knowledge of this subject. I urge you to look up spider bites according to the area of the earth and the species of spiders. If you are in the netherlands, there are no spiders that. ...Read more

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What kind of spider bites should I be concerned about?

In US - 2 of: Significance are black widow & brown recluse. ...Read more

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What are the differences between viper and spider bites?

Bite marks and venom: Spider bites have typically one site of envenomation and most pit vipers have two injection sites. The kind of venom and its potential effects are extremely variable and depend on the animal, where the bite occurred, the size of the person, the amount of venom injected and other factors. ...Read more

Dr. Cornelia Franz
1,059 doctors shared insights

Rash (Definition)

A rash is a change to skin condition which can affect color, appearance, or texture. It may or may not ...Read more