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Doctor insights on: Bug Bites That Turn To Welts Then A Blister

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My 3 bug bites have turned into a redish purple blister/bruise. Should I be concerned?

My 3 bug bites have turned into a redish purple blister/bruise. Should I be concerned?

Depends: Depends on what kind of "bug" bit you. Symptoms are sometimes normal for some "bugs" but in other cases may turn out to be a serious problem in a few days. See your family physician. ...Read more

Insect Bites (Definition)

Insect bites are from mosquitos, spiders, flies, ticks, and other species that use their mandibles (jaws) to attach to a person or other animal. They can then suck blood out of their "prey" and leave saliva proteins that cause itching and swelling. Other insect species, like bees, yellow jackets, wasps, hornets and fire ants actually inject venom into their prey and can not only cause localized pain and swelling, but severe, acute allergic reactions in ...Read more


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What bug bites and leaves a blister?

What bug bites and leaves a blister?

Many types of: insect bites can blister - it is a non-specific rxn. ...Read more

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Giaant red welts from bug bites - what is this?

Giaant red welts from bug bites - what is this?

Not answerable.: It is often difficult to distinguish a bite from one insect from another. However spider bite often gets larger and infected. ...Read more

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Can blood blister come from bug bites?

Can blood blister come from bug bites?

Yes: A blood blister is a small amount of bleeding under the skin. If you are scratching yourself from the bug bite then you could form a blood blister. ...Read more

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How to treat blisters on ankles from bug bites?

How to treat blisters on ankles from bug bites?

Anti-itch med: If the blisters itch you can use an over the counter cortisone cream or Diphenhydramine on them per directions on tube. If they look slightly red and infected, apply some over the counter antibiotic if not allergic to it. If severely infected, see a doctor (either pcp or podiatrist). Try to not scratch at the bites. You can keep a bandage over them to deter scratching. ...Read more

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Can you recommend a remedy for itchy red welts that turn into bug bites?

Can you recommend a remedy for itchy red welts that turn into bug bites?

? Urticaria: and could chronic if that has been going on for sometime, please see an allergist, if not, could be just acute urticaria and will go on its own, OTC antihistaminic, unless contraindicated, would help in the interim, good luck ...Read more

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I went to a friend is in that bed bug bites what do I do about them they are blistering up?

Wet dressings: Arthropod bites respond to open wet dressings 10 minutes three times daily followed by Hydrocortisone 1% cream . Best to see your md for a stronger cortisone cream. ...Read more

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What bug bites blister & ooze?

? fire ants: Fire ants are notorious when they bite, can cause blistering and oozing, at times allergic reaction 2 sensitized individuals, although those are present in southern united ststes, the other possibility is chiggers. ...Read more

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What bug bites cause itching welts?

What bug bites cause itching welts?

Lots of bugs: Most insect bites cause local inflammatory reactions like itching and welts that are mild and resolve within a few hours without complications. Of course bee stings and cause more severe local and systemic reactions if you are allergic but any biting bug could cause a localized response. Mosquito bites are common culprits. Ticks, flies, and fleas are also implicated. ...Read more

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Why do my bug bites have water blisters?

Why do my bug bites have water blisters?

Some bugs do: Insect venom contains enzymes and toxins and these can lead to blisters. ...Read more

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What sort of bug bites cause a growing red blister?

What sort of bug bites cause a growing red blister?

Almost any kind.: Virtually any sort of bug bite can cause blistering. I generally don't recommend popping these blisters unless they are painful, because of the risk of infection. If it's not bothering you, cover it with a bandaid. If it itches, apply Hydrocortisone cream 2-3 times a day. If it gets painful or tender, or develops a red ring around it, see your doctor or a dermatologist. ...Read more

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Do bed bug bites itch and swell up like blisters?

Do bed bug bites itch and swell up like blisters?

It is possible but: Can appear different then this description. Bed bug bites may cause no symptoms or signs in some people. When there is a reaction, it may not show until several days after the bed bug has bitten. It can cause pink, swollen, itchy lesions on the skin. What can be telltale is when there is a linear track of lesions from sequential feedings – but that does not always occur. ...Read more

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Had 3 bug bites 2 months ago. Formed a hard welt on one bite. All 3 continue to really itch. One scabbed. How to get rid of?

Had 3 bug bites 2 months ago. Formed a hard welt on one bite. All 3 continue to really itch. One scabbed. How to get rid of?

But bites: The firm mass at one bite site may be a small blood clot(hematoma) from bleeding under the skin which occurred at the time of the bite. As long as these bite sites are not hot and reddened no secondary infection is likely and you can apply a cortisone type ointment to relieve itching. The hematoma may very slowly resolve. ...Read more

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Got bug bites few days ago, one yesterday it turned into a blister. I've been putting cortozone on it leaked clear liquid yesterday, but still Blister?

Got bug bites few days ago, one yesterday it turned into a blister. I've been putting cortozone on it leaked clear liquid yesterday, but still Blister?

Let them heal.: The bites will heal but if the itching is a problem your pharmacy has several items to help. As for the blister let it alone and it will break open itself. There is no need for cortozone. ...Read more

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A bug bites me when i was on beac, after 1 day my arm got so big around that area that the bug bites, no pain, no blister, just itching, what can I do?

A bug bites me when i was on beac, after 1 day my arm got so big around that area that the bug bites, no pain, no blister, just itching, what can I do?

Bug bites: Some insects can cause a venomous bite, meaning it can cause redness and swelling and itching. If it is really bad you should have it checked out to make sure you do not have cellulitis and if needed the doc can prescribe antibiotics. Meanwhile you can try some over the counter antihistaminic like benadryl (diphenhydramine). ...Read more

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Can bug bites look like blisters?

Can bug bites look like blisters?

Many possibilities: There are many types and causes of skin blisters. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, viral or fungal infections can cause blisters on the skin. Insect bites can also cause blisters. Have it evaluated by a professional and get the appropriate treatment. ...Read more

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I have huge bug bites all over my body that are welted up and the size of quarters. Should I be concerned? Not bed bugs, got them at the park. They it

I have huge bug bites all over my body that are welted up and the size of quarters. Should I be concerned? Not bed bugs, got them at the park. They it

Itchy bites: Local reactions to insect bites can be very annoying, but rarely harmful. Scratching can result in secondary infections. Check for any ticks. With the exception of fire ants subsequent exposure is unlikely to cause more than localized itching again. ...Read more

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I'm not sure if your the right dr to ask, but I have these bite that I thought were bug bites but some developed a clear blister on top. When one goes away another one comes. They itch and pop easily but they don't appear to be spreading. It's only on top

I'm not sure if your the right dr to ask, but I have these bite that I thought were bug bites but some developed a clear blister on top. When one goes away another one comes. They itch and pop easily but they don't appear to be spreading. It's only on top

Need more info: You have come to the right place. Unfortunately rashes are difficult if impossible to diagnose without seeing. It is not clear where these are either. This type of rash can be many things. I suggest setting up a consult with one of HealthTap doctors where you can discuss it in more detail and upload photos. ...Read more

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Blisters on bed bug bites will popping them help?

Blisters on bed bug bites will popping them help?

No, if this is : Likely an allergic rxn. See dr. Bites may cause no sx's/signs except for 2 small points where skin was punctured. When there's a reaction, it may show from an hour to several days after bite. It can cause itchy, pink, swollen, lesions w clear center. In cases of hypersensitivity blisters may develop. A telltale sign is linear track of lesions from sequential feedings – but doesn't always occur. ...Read more

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There is big red welted bug bites all over my child. What should I do?

There is big red welted bug bites all over my child. What should I do?

Call: Call your pediatrician. Bites may be from any number of different insects, and rx may vary. Call the pro. ...Read more

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Hi, I got about 9 bug bites in about the size of a half dollar on my left side. Now they are blistering. Should I be concerned?

Hi, I got about 9 bug bites in about the size of a half dollar on my left side.  Now they are blistering.  Should I be concerned?

More likely shingles: Ask your doctor to prescribe a anti-viral agent for you now in order to reduce the duration and intensity of the problem. ...Read more

Welts (Definition)

Welts is another description of hive or swelling in the skin. They are pink, raised and with a vague border. The term welts is used more often for larger pinkish swelling in the skin, whereas , hives are often smaller pinkish swellings. Both are caused by histamine release in the skin which usually ...Read more


Dr. Philip Miller
1,707 doctors shared insights

Blistering (Definition)

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