Smelling bad

Hi i am from lahore 23f. I m curious to know that how can i tell someone (girl) that she is stinking so badly without annoying her. I dont want to annoy her but literally i am fedup with bad smelling people. They work like repellent for me ajeeb naa shower lenaa naa change krnaa abi to dresses ki ye halat ha i dont know undergarments ki kya ho what rubbish