Best idea is sealing it in a mason jar with some orange peel for a couple hours. Should give the bud a more natural taste/smell.
i've had the same problem before had weed that smelled and tasted like what we could only describe as laundry detergent or fabric softener. we concluded that someone up the hierarchy had used it to smuggle the smell. we still smoked it...tasted weird but got us high i've also had killer homegrown that developed mold...we smoked that too, even though we probably shouldn't have
My opinion is just man up and smoke it. Does it have THC? Does it get you high? If the answer is yes, then there is no problem. But I would find another dealer. Either that or when he hands you the bag tell him to get you another bag without that shit in there. It's really your job to mask the scent not his. Plus if he really cared that much he'd buy smell proof bags