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Doctor insights on: Poison Ivy Dermatitis

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Is poison ivy contagious?

Is poison ivy contagious?

No: Poison ivy lesions are not contagious. Anything which has touched urushiol from the poison ivy needs to be cleaned. This includes skin, clothes, shoes, gear etc. Touching urushiol can cause spread. ...Read more

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Dr. John Chiu
2,663 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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Allergic contact dermatitis is poison oak or something else?

Allergic contact dermatitis is poison oak or something else?

Yes and no.: Poison oak allergic reactions is a form of allergic contact dermatitis. But there are hundreds of chemicals and substances which can cause allergic contact dermatitis. The most common are nickel, latex, adhesives in bandaids, neomycin in antibiotic creams and many more. ...Read more

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Is poison oak allergy genetic?

Is poison oak allergy genetic?

Poison oak: Some people appear to be immune, others become immune. However, you can gain or lose immunity, so to assume you can't get it if you never have before is foolish. People change as they age. I would never assume that i was immune at any time no matter what my past experience was. ...Read more

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Poison oak and poison ivy the same thing?

Poison oak and poison ivy the same thing?

Yes: Poison ivy (in eastern us), oak (in western us), sumac (in eastern us) are 3 species in the genus toxicodendron or rhus which all produce urushiol oil, the substance that in sensitive individuals produces contact dermatitis. Urushiol is very stable and can be blown on leaf particles into contact with the skin or carried on clothing for over a year so dermatitis can occur without plant contact. ...Read more

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How are poison ivy or oak rashes different?

How are poison ivy or oak rashes different?

Similar: Poison ivy, poison oak and poison sumac can all cause allergic contact dermatitis. Since the rashes will all look the same, to determine which rhus plant it was, it will mean taking a walk and trying to identify the specific plant. Look but don't touch! ...Read more

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Does the poison ivy and poison oak look identical?

Does the poison ivy and poison oak look identical?

Yes: Both are due to contact allergy to oils/ sap from the plants. The rashes are identical. ...Read more

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Cures for poison ivy and oak?

Cures for poison ivy and oak?

See below: mild cases can probably be treated with a steroid cream. severe cases usually require oral steroids. ...Read more

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How to treat poison ivy, oak , sumac fast?

What to do.: There are specific products that you can buy that will wash the urushiol off. Some options of treating poison ivy include calamine lotion, oatmeal soaks, Hydrocortisone cream and antihistamines. Anything which has touched urushiol from the poison ivy /oak etc needs to be cleaned (clothes, shoes, gear etc.) oral steroids are sometimes indicated. ...Read more

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Can poison ivy poisoning spread internally?

Can poison ivy poisoning spread internally?

Yes -- if vaporized: If poison ivy is burned, the oils vaporize, and you breathe it in -- yes, you can have internal poison ivy reactions which could be very dangerous. Sometimes this can happen accidentally, like when clearing a yard in winter, that you don't realize has poison ivy vines on trees, etc. (i've seen it happen.) poison ivy just on your skin will not "spread" internally, though. ...Read more

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Poison ivy and scabies look alike?

No: Poison ivy typically starts out as red patches and can even blister. However, scabies typically are single, small red bumps that follow a line. Scabes can occur commonly on the hands and between the fingers as well as underneath elastic bands such as a waistband. ...Read more

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What's good to cure rash from poison ivy and poison oak?

What's good to cure rash from poison ivy and poison oak?

Poison Ivy: The best therapy is a prolonged dose of oral steroids, typically 10 or more days. Tapering steroid packs such as a 10 or 13 day "dexpak" is most effective. Shorter durations of steroids will often result in return of the rash. ...Read more

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What's good for poison ivy and poison oak?

Steroids: These reactions represent a contact allergy, and can be quite severe. The affected area needs to be washed thoroughly, and topical steroid creams can be applied. You can start with 1% Hydrocortisone from the drug store, but a more potent prescription cream will probably be necessary. In severe cases, oral Prednisone my be required. ...Read more

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Can poison ivy rash look like mosquito bites?

Can poison ivy rash look like mosquito bites?

Not usually: Poison ivy tends to involved a much large area of the skin than a mosquito bite. The blisters may not appear until 1 to 3 days later after contact. Mosquito bites look more like a wheal or hive, poison ivy more likely bumps and blisters. ...Read more

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Will hot water agitate a poison ivy / oak rash?

Will hot water agitate a poison ivy / oak rash?

Hot water no help : Poison ivy is a contact dermatitis that takes 10 - 14 days to clear. Hot water will cause the superficial blood vessels in the skin to dialate making the area redder and if hot enough briefly numb nerve endings. It will not in anyway improve or shorten the natural course of poison ivy. The only treatment that partly helps is oral or injectable steroids, but side effects can be significant. ...Read more

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Do poison ivy rashes affect your face?

Do poison ivy rashes affect your face?

It can: Some of the more worrisome cases i've treated have come when kids rubbed their eyes with contaminated fingers. ...Read more

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Could chlorine help heal poison oak?

No: Avoid chlorine over open sores such as with poison oak. This can lead to more irritation. ...Read more

Dermatitis (Definition)

Dermatitis means inflammation of skin. Contact dermatitis, allergic contact dermatitis and seborrheic dermatitis are ...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