A woman stops smelling her own perfume after a while due to sensory adaptation, where our sense of smell becomes accustomed to the scent and filters it out. Overexposure and wearing the same perfume daily can lead to desensitization. Alternating fragrances prevents familiarity. Environmental factors like humidity affect scent perception. Switch scents occasionally and apply them to pulse points to maintain fragrance awareness. Nose blindness is common, but adapting habits can help keep perfumes noticeable.