Fungal How Do I Tell Difference Between Shedding And Fungal Infection For A Red Eared Slider?

How do I tell difference between shedding and fungal infection for a Red Eared Slider? - fungal

My RES strandy clear material of cotton around the neck and legs. I do not know if it is a fungal infection or excretion. If fungal infection is, I can give advice on the treatment?