How To Treat Itchiness All Over The Scalp And Black Specs On Skin?

hi, for the past 3 days now i have been feeling very itchy all over the place, my scalp alot, but everywhere! i have pin dot bites..that look like something is sucking blood from them! i also have black specs on my skin! another odd thing is.. there are tiny pieces of lose hair's that apear wherever the itching and black specs are. i have also seen these bugs on me, about 5 times since this started! my husband now is very itchy and has also seen the bugs on him also! but he is very hairy so he cant tell if he has the other simptoms! the bugs seem to jump and are kind of orange! i also have a dog...who i took to the vet and they couldnt find anything! i put her on flea med's anyway but i am not sure what i should do...please help!!!