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Doctor insights on: Spider Bites That Cause Blisters

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Dr. Philip Miller
1,708 doctors shared insights

Blistering (Definition)

A blister is a collection of fluid under the epidermis. A blistering rash is one in which ...Read more


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Do spider bites blister?

Yes, that can: Sometimes occur with both venomous and non-venous spiders. ...Read more

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Do non-spider bites blister?

Do non-spider bites blister?

Some do: A classic example is a tropical fire ant bite which develops into an aseptic pustule. ...Read more

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Can spider bites get little blisters with clear fluid?

Can spider bites get little blisters with clear fluid?

Natural Process: With injury to our skin, inflammation occurs which means the area becomes red, warm, tender and with swelling. Swelling occurs under the skin layers and causes them to bulge creating a protective fluid cushion called a blister. As the area heals, the fluid will be resorbed or when no longer needed, the blister opens and it drains. This should take about a week. Keep it covered and protected. ...Read more

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Spider bite and blister, is it okay?

Small blister is: Likely ok. Seek medical care asap if you think a spider bit you ; you have severe pain (can be felt at bite site ; possibly chest, back or abdomen); abdominal cramping /rigidness or ulceration of skin at site. You may need a tetanus shot (if you don't know when your last shot was or it has been > 10 years). Also medical care if you develop signs of secondary infection. ...Read more

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Is it ok to pop a spider bite blister?

Is it ok to pop a spider bite blister?

Recommend against it: Breaking open the blister will create a portal for infection. ...Read more

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Is lancing a spider bite blister a good idea?

Is lancing a spider bite blister a good idea?

No: The reason is that once the skin is broken this acts as a portal for infection. ...Read more

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Does a spider bite look like a water blister?

That could be one: Presentation. But, if you didn't see a spider - i wouldn't automatically assume that you were bit by a spider. This finding can occur with a variety of insect bites ; stings. Take care. ...Read more

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How to treat painful blister from spider bite?

How to treat painful blister from spider bite?

Need details: How do you know it is a bite? How do you know it was a spider? The majority of these are not correct diagnoses. Did you see and feel a bite? Did you identify the species? Very few spiders are venomous. Best course is to see a Dr. Unfortunately very few Drs have any knowledge or experience with actual spider bites because they are so uncommon. They happen in USA only in the SW quadrant so most Dr ...Read more

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Will popping a spider bite blister make it worse?

Blister: If a blister is sterile, it does not need to be popped and may actually act as a barrier to infection. If their is surounding redness or tenderness, pop the blister, clean with soap and water and apply triple antibiotic ointment and a bandaid. See a doctor for signs of worsening tenderness redness or swelling. ...Read more

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How to treat watery blister from spider bite?

How to treat watery blister from spider bite?

Natural Process: With injury to our skin, inflammation occurs which means the area becomes red, warm, tender and with swelling. Swelling occurs under the skin layers and causes them to bulge creating a protective fluid cushion called a blister. As the area heals, the fluid will be resorbed or when no longer needed, the blister opens and it drains. This should take about a week. Keep it covered and protected. ...Read more

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Painful blister on arm. Could this be a spider bite? Should I seek medical attention? On vaca soon-afraid of brn recluse-type reaction-but live in WA

Painful blister on arm. Could this be a spider bite? Should I seek medical attention? On vaca soon-afraid of brn recluse-type reaction-but live in WA

Not spider: Spider bite is rare, maybe never where you live. It is immediately painful. Unless you saw and felt the attack, then took the spider for expert identification, assume it is something else. Brown recluse is not normally found in WA. ...Read more

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Blisters swelling looks bruised. Could it be a spider bite?

Blisters swelling looks bruised. Could it be a spider bite?

Very unlikely: There are no spiders in maine capable of biting humans. See a dermatologist if you need a specific definition of this. ...Read more

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It's been two days. Still swollen. Do I pop a spider bite blister? It is small red is going away not a brown recluse.

It's been two days. Still swollen. Do I pop a spider bite blister? It is small red is going away not a brown recluse.

No: See you doctor for an evaluation and if an i & d ( incision and drainage) is needed, the doctor could do this with sterile technique and place you on meds if needed. ...Read more

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I keep getting little blisters all over my body what could it be the one on my yaya is now bright red. All started with a spider bite on my arm?

I keep getting little blisters all over my body what could it be the one on my yaya is now bright red.  All started with a spider bite on my arm?

Possible Emergency!: A blistering rash that is heralded by a single ulcerating lesion is concerning. The initial lesion may represent inoculation with Staph or strep bacteria (common after an insect bite or even may mimic an insect bite if the bite was not witnessed). If staph/strep skin infection is followed by generalized red spotty rash or blisters, then one must consider scalded skin syndrome or scarlet fever. ...Read more