Ketoconazole is useful in reducing yeast like microorganisms that can overgrow in oily and sweaty areas of our body. It works against itch by calming a cause of irritation. The shampoo may be drying on the
body. The cream will not cure Grover’s but can help
in body areas to reduce seborrheic itch. I use Nizoral in rotation with other anti itch shampoos on my scalp.
Sweaty areas on the chest under breasts may respond
if you have yeast overgrowth. If you have had long term
sun exposure that can be a factor in Grover’s.