If you have a fungal infection in your pubic area you should apply some over the counter antifungal cream or antifungal powder to the fungal infection.
Also wash the area really good using antibacterial soap before applying the antifungal cream or powder.
Coconut oil has antifungal properties and can help kill off the bacteria causing the fungal infection so you can apply some coconut oil to the fungal infection and it should start to clear up within a few days to a week.
Another way to get rid of a fungal infection is to apply apple cider vinegar or some mouth wash to the fungal infection.