What is the difference between apperant picture of the melanoma and skin fungal infection?

Very different: Melanomas usually start in a pigmented lesion (not always). And slowly grow and may bleed or ulcerate. Fungal infections begin in moist creases or folds and have white arches or raised itchy pink skin and usually respond to treatment by keeping the area clean and dry whereas a melanoma will not. Any lesion present for over a month should be evaluated by a dermatologist.

Pigment: Remember your abcd's when thinking of melanoma. Look for moles with asymmetry boarders that are irregular color differences within the same mole diameter greater than 6mm a fungal infection usually has raised edges with inflammation. If you have concerning skin lesions, you should see your dermatologist.