My husband is severely swollen and also has red streaks all the way up his arm and he has a fever he is in the hospital now and they don't have a clue either he works with rebar and concrete and thinks he poked himself with something he has a puncture on his thumb his hand and arm are just getting bigger what do you think

The doctors at the hospital would know better than us. It sounds, though, like an infection or cellulitis. Has he had a tetanus shot recently? Is he on antibiotics?