Handling cardboard and allergy. Please help.

[Benbay001]

Ive spent the week dealing with the recycling at work.
Part of the job involves loading cardboard into a compactor.
It seems that i have some sort of allergy- or am being bitten by something living in the cardboard.

My ankles are covered in some very itchy red spots. They may be bites, they may not be.

Any ideas? Ill try and provide as much detail as i can.

[Benbay001]

I should also add that i had these lumps a couple weeks back, when i did the recycling job for 3 consecutive days. As soon as i came off the job and back onto my usual role the lumps went. They reappeared tuesday morning.
Im fairly confident they are related to the cardboard.

And yes, ive checked my bedding thoroughly.

[Benbay001]

Some good news.
I was covering the job because the person who usually does it had been sacked.
Yesterday he was replaced so im back to normal duties

Thank you for your thoughts.