It might sound strange, but allergies to cardboard aren't uncommon. They're recognized as a kind of allergic contact dermatitis. Cardboard allergies are most common among individuals working with cardboard, but they can affect anybody.



Symptoms
Cardboard allergies are a type of contact dermatitis. This is an inflammation of the skin. Symptoms include flaking of skin, redness, blistering and itching. Contact dermatitis is caused when the blood cells become sensitized to substances in the environment.

Cause
Individuals with allergies cardboard aren't allergic to the cardboard itself, but to a glue resin employed in the production of cardboard. This resin is known as P-Tertiary-butylphenol formaldehyde resin (PTBP). It's also utilized to produce plastics, plywood, varnish and a few leather goods. Individuals with cardboard allergies are occasionally also allergic to plastics and shoes which contain PTBP.

Cardboard Allergy Effects
To have a cardboard allergy, a person must have been exposed to the substance. People who work with cardboard every day are more at risk. On exposure, a red, itchy rash usually develops within 6 to 12 hours. The reaction will get worse over the next 48 to 72 hours, and eczema (scaly, weepy skin) may develop.

Treatment
The allergy can be recognized by means of a patch test. PTBP is among those spores typically examined to get a patch test. Once recognized, it may frequently be treated with antihistamines and corticosteroids. The very best approach to take care of cardboard allergies would be to steer clear of cardboard and some other substances comprising PTBP.

People with allergies to cardboard are not allergic to the cardboard itself, but to an adhesive resin used in the manufacture of cardboard. This resin is called P-Tertiary-butylphenol formaldehyde resin (PTBP). It is also used to make plastics, plywood, varnish and some leather products. People with cardboard allergies are sometimes also allergic to shoes and plastics that contain PTBP.


Source: https://aderonkebamidele.com/cardboard-allergy-symptoms/