Tabatha:
Psoriasis can indeed look like fungus, so your dermatologist's uncertainty is understandable.
Now that you know it's psoriasis, it's just a matter of treating it successfully. The cause is unknown, but it isn't contagious or allergic.
You should work with your doctor to persevere long wnough to get the rash to
clearClear by design
Clear eyes
Clear eyes acr
Clear eyes clr
Clear-atadine
Clear-atadine children's. Tjis may take some time, but you should be able to do it. The you'll be able to resume treatment whenever it reappears, which it is likely to do from time to time.
Best.
Dr. R