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Doctor insights on: Bug Bites That Cause Fever

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What kind of bug bite causes swelling and fever?

What kind of bug bite causes swelling and fever?

Probably any insect: bite can cause swelling or fever depending on your body's response and/or the potential development of associated cellulitis/infection. ...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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Went to a bonfire, got dozens of bug bites,unable to sleep and have fever,what can I do for relief??

Went to a bonfire, got dozens of bug bites,unable to sleep and have fever,what can I do for relief??

Fever?: If your body temperature is over 100 degree F for no other reasons (not just a feeling of fever), the bites might have been infected since bug bites are not usually associated with a fever. (West Nile fever is a problem in many parts of the country from mosquito bites) If you truly have a fever, you need to see a doctor now. If not, then they will likely subside unless you see pus forming. ...Read more

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My two year old has a fever ranged from 103-101 Advil drops the fever and he has no other symptoms.He does have two bug bites on his back that showed up this morning. My one year old does not have a fever and my two year old acts just fine he has been eat

My two year old has a fever ranged from 103-101 Advil drops the fever and he has no other symptoms.He does have two bug bites on his back that showed up this morning. My one year old does not have a fever and my two year old acts just fine he has been eat

He should be fine!: Mosquito borne disease usually has an incubation period a bit longer than you mentioned. He is also doing well overall without painful and/or swollen joints; sore muscles/aching tendons; extensive skin rashes; tiredness;headaches and swollen lymph nodes. Put 1% Hydrocortisone cream on the bug bites or apply cool compresses. Oral antihistamine like Benadryl (diphenhydramine) 2.5ml could be offerred at night. ...Read more

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11 mth old swollen nodes on back of head at neck for 2 weeks. Went down 1 day & came back.No fever or other symptoms. Bug bites on head. Call doc?

11 mth old swollen nodes on back of head at neck for 2 weeks.  Went down 1 day & came back.No fever or other symptoms. Bug bites on head. Call doc?

Reactive: These nodes are reacting to the bug bite on the scalp. Ibuprofen could help with swelling. If the nodes continue to swell or get worse a course of antibiotics could be helpful. So i would see the doc in 1-2 weeks if not better. ...Read more

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Vacation Costa Rica. 12yo daughter bad fever last night. Gave ibuprofen -it broke. Morning- fevers back. Has bug bites. No joint pain or throwing up?

Vacation Costa Rica. 12yo daughter bad fever last night. Gave ibuprofen -it broke. Morning- fevers back. Has bug bites. No joint pain or throwing up?

I would recommend: that she be seen by a doctor there so that the cause of the fever can be determined and treatment given if needed. Meanwhile you can continue the ibuprofen every 6 hours and make sure she is drinking plenty of fluids. ...Read more

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What can cause facial swelling besides bug bites?

What can cause facial swelling besides bug bites?

Facial swelling: Face swelling can be caused by inflammation, allergies, trauma or infection in the tissues of the face. Facial swelling can be due to relatively mild conditions, such as a sinus infection, or a serious or life-threatening condition, such as analphylactic shock, that should be immediately evaluated in an emergency setting... ...Read more

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Got a couple of bug bites on the thigh a month ago. Took a week to go away. Suddenly came back in exactly the same place. What causes this?

Got a couple of bug bites on the thigh a month ago. Took a week to go away. Suddenly came back in exactly the same place. What causes this?

Staph infection: It is most likely not a bug bite if it is recurrent. There is a world wide epidemic of hard to treat staph skin infections. I would hope you could get in to see your family doctor soon to get eyes on the spots that are bothering you. ...Read more

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What bug bites cause circular pattern?

What bug bites cause circular pattern?

Many: Papular urticaria, as it is called, is what is typically seen from bites by mosquitos, spiders, etc. Usually reactions to the saliva trigger itching, redness and a small bump that resolves in a couple days. Bigger reactions (redness, tenderness), can mean infection; circular rings around the bite may also raise concerns of tick bites leading to Lyme disease; early treatment is very effective. ...Read more

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My daughter has three open round wounds on her leg. I think she has scratched her bug bites. What would cause the circular wounds?

My daughter has three open round wounds on her leg. I think she has scratched her bug bites.  What would cause the circular wounds?

Possible Infection: If these lesions were originally insect bites that she has been scratching they may have become infected. If they are painful, red, warm or she feels feverish she should see her healthcare provider. ...Read more

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Do bug bites cause bruises?

Do bug bites cause bruises?

Some do, yes: Some mosquitoes in some individuals, bed bugs, spider s, ticks (as in lyme disease) can cause bruises. ...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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Is it normal for bug bites to cause bruises?

Is it normal for bug bites to cause bruises?

No: It's bleeding underneath skin causing "bruises". Are you taking aspirin? Or may the bug has "toxin" which cause bleeding. ...Read more

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What causes bug bites?

What causes bug bites?

Bugs: Bugs bites are the reaction to different, well, bug bites. These could be mosquitos, chiggers, fleas, bed bugs. "bug bites" is really a broad category. ...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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What would cause what looks like bug bites and tenderness that has lasted a week?

What would cause what looks like bug bites and tenderness that has lasted a week?

Delayed Reactions: Delayed insect bite allergic reactions lasting a few weeks are not uncommon. Other entities however need to excluded including drug allergy, autoimmune disease, infectious diseases and other entities. ...Read more

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Bug bites that causes red bruising with a white dot in the middle, what is this?

Bug bites that causes red bruising with a white dot in the middle, what is this?

Infection: Bug bites that result in red bruising with a white dot in the middle could be due to fire ant bites (but not common in NYC). Or could be due to infection (an abscess). Usually the white dot that you describe indicates pus that needs to be drained. Please see your primary care provider. ...Read more

Dr. Mark Diamond
2,227 doctors shared insights

Fever (Definition)

Fever = elevated body temperature (can be ...Read more