Final answer:
The 20-year-old client is most likely exhibiting signs of Candidiasis, a fungal infection characterized by vaginal itching, burning, and a thick, white, cheese-like discharge. Treatment involves the use of antifungal medications.
Step-by-step explanation:
The 20-year-old client who reports vaginal itching and a thick, white, cheese-like vaginal discharge beginning 2 days ago is most likely exhibiting signs of Candidiasis.
Candidiasis is a fungal infection caused by an overgrowth of Candida albicans, a type of yeast. It commonly occurs in women who are taking oral contraceptives or have recently completed a course of antibiotics. The symptoms of candidiasis include vaginal itching, burning, and a thick, white, cheese-like discharge. Treatment typically involves the use of antifungal medications, either orally or topically.