HI, I HAVE A FRIEND WHO HAS A MAJOR INFESTATION

HI, I HAVE A FRIEND WHO HAS A MAJOR INFESTATION OF BUGS. SHE HAS BUG BITES ALL OVER HER. HER HOUSE HAS BEEN FUMIGATED BUT SHE IS STILL BATTLING GETTING RID OF THEM. SHE THINKS IT IS BOTH FLEAS AND BODY LICE. THIS HAS BEEN GOING ON FOR SEVERAL MONTHS. WHAT KIND OF DOCTORE SHOULD SHE SEE.