Can you get a rash from pine trees?Allergic reaction to pine sap.

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The sticky substance that comes from pine and spruce trees is called rosin.It can be used in a wide range of products.The table below shows only some of the many products that contain rosin.

Acute allergic contact and difficulty breathing are some of the reactions to contact with rosin.Reactions to contact with rosin can occur within a day or two, but sometimes they can be more than a week after exposure.It is usually confined to the site of contact with rosin.The face may also be involved after carrying pine wood.The skin becomes red and itchy.It may become even more intensely itchy as the reaction progresses.If exposure continues, the skin may becomesclerotic.

Special allergy tests called patch tests are used to diagnose rosin allergy.

If you want to self-test a product for rosin, you can use the repeat open application test.Great care must be taken when using chemicals.Discuss this with your doctor.For seven days, apply a very small amount of the product in question to a small area of skin, such as the bend of your arm.It is unlikely that you are allergic to the product after applying it for 7 days in a row.You can still develop a reaction to the product.

The only long term treatment of allergy is avoidance.There isn't a way to de-sensitise to rosin.It is the same treatment as for any acute dermatitis/eczema, with the exception of the treatment of staphylococcus aureus.

The best way to avoid colophony allergy is to be aware of products that contain rosin.Look for the list of ingredients on the product labels or packaging of substances you come into contact with, not just the ones you think are reacting to.The manufacturer of the product should be contacted.Do not buy products that don't list all the ingredients.

Gloves or other protective clothing are required if you must use products that contain rosin.If you are sensitive to rosin, your dermatologist may have more specific advice.

All of them should be avoided.To avoid contact with material containing rosin, request a material safety data sheet at work.