A fungal infection around the private parts is commonly treated with antifungal creams such as clotrimazole, miconazole, or terbinafine, which are usually applied to the affected area twice daily for a few weeks. It is important to keep the area clean and dry, wear loose cotton underwear, and avoid tight clothing to help the infection heal faster. If the infection does not improve within 1-2 weeks or keeps recurring, it is best to consult a doctor for proper treatment.