Was considering taking bee pollen supplements but heard if you have seasonal allergies you shouldn't, is this true?

Probably: There are rare cases of anaphylaxis from bee pollen. One problem is that the pollen collected by bees are specific for that colony and area.They are mostly from flowering plants they are not the usual allergenic ones which travel in the air . The reaction is usually from cross-sensitivity between a particular pollen and another plant. No evidence bee pollen is effective for allergic diseases.