First line topical treatment is ketoconazole (nightly application x 2 weeks) or selenium sulfide (10 minutes x bid)
Single dose 400mg ketoconazole PO or fluconazole 150-300mg PO per week x 2-4 weeks for more resistant cases or for easy-of-use
Griseofulvin is not effective
Tinea versicolor
Postinflammatory hyperpigmentation 
Tinea corporis
Melasma
Onychomycosis
Solar lentigines
Candida dermatitis
Ephelides 