Difference between shaver burn and bed bugs?

Red Bugs: A chigger or red bug is an immature stage (larvae) of the harvest mite. Like all mites, the harvest mite life cycle includes larva, nymph, and adult. In the last two stages, this mite feeds on plant materials. The stage that gets the attention of humans is the larval stage. This is the stage that is considered to be a pest, causing intense itching. Razor burn is a type of irritation.

Bed bugs -shave burn: Bed bug bites may cause no sx's or signs in some except for 2 small points where skin was punctured by bedbug. When there's a reaction, it may show as fast as an hour or it may not show for several days after being bitten. It can cause itchy, pink, swollen, lesions which are clear in center. In cases of hypersensitivity blisters may develop. A telltale sign is a linear track of lesions from >>.