Hello,
The symptoms and picture are suggestive of pityriasis versicolor. It is a common skin infection caused by the yeast Malassezia furfur. This skin disease commonly affects adolescents and young adults, especially in warm and humid climates.
Most cases of fungal infection respond to over-the-counter products, which contain any of several basic ingredients: miconazole, tolnaftate, terbinafine,ketaconazole and clotrimazole.You can consult a pharmacist and get any cream or lotion containing these ingredients. Some of them are Lamisil, Monistat derm, Mycelex, and Nizoral.If the symptoms persist then please consult a dermatologist.
I hope that helps. Take care and regards.
Oh and 1 other point to mention. The spots don't itch.