Fungus Or Columnaris - Guppy Pics

I have a Guppy that has developed some fungal looking areas. On top of the head above the gills, one spot at the front base of the dorsal fin, and a couple spots on her body. What does this look like to you experts.

If fungal, can I treat with just aquarium salt and a temp rise?

Thanks in advance.

One more.

Pics are a bit blury so going to ask some questions if you don't mind.
How many gallons or litres is the tank.
How many fish and which type.
Water stats in ammonia,nitrite,nitrate and ph.
The spots look bigger than grains of salt is this correct.
Any signs of laboured breathing, and flicking and rubbing against objects in the tank.
The spot do they look like a greyish white with a tinging of red and the outside of the spot.
Or are they just white and look fluffy in appearance.

29 gallon
5 Guppies, 6 Zebra Danios, 2 Peppered Corys, 3 Ghost Shrimp
Water stats are fine.
The spots are larger than a grain of salt, this is definately not Ich.
They appears to be just white, I don't see any red around the areas.
This was a new addition to an established tank...they appeared after a couple days.
Behavior and activity seem normal.

If fungal, can it be treated with salt? I don't have any meds at the moment other then salt and Quick Cure.

A hospital/quarantine tank is not an option, as that tank is in the beginning stages of a fishless cycle.

Thanks for the help.

A true fungus is rare.
Fungus can grow on dead tissue.
Can't use salt with the strimp and corys.
Columnaris is bacterial.
http/www.aquatic-hobbyist.com/profiles/d...columnaris.html