Re: treatment of fungal infection

 You can treat it as a fungal infection and see if it clears up. Won't hurt anything. I would go with thyme oil diulted in olive oil for application to the site. Blend 40 drops of thyme oil in to the olive oil.

How many times a day and roughly how long before i give up on it being a fungal infection.

Three times daily to make sure it does not have a chance to rebound.  If you don't see any improvement within a couple of weeks then it is not likely an infection.

I have a yeast problem but i don't think it is systemic as no other symptoms, if it is fungal does that mean i also have a systemic problem with yeast?

No, injury to an area can cause a localized infection. For example nail fungus can occur in one nail due to injury. This does not make it systemic.

One other thing I forgot to mention is to maintain the naturally acidic pH of the skin.  Flora on the skin maintain this slightly acidic pH. Soap on the other hand is very alkaline, which can damage the skin. You can either get a liquid soap and pH adjsut it with some citric acid or make a citric acid spritz for skin to use after bathing to restore the acidic pH.