Here are the expert tips and suggestion to take care of yourself in the hot and humid weather.

Use a cleanser: Follow the cleansing, toning and moisturizing ritual twice a day for best results. To keep your skin acne-free use a cleanser which contains salicylic acid and helps reduce acne and prevent future breakouts.
Exfoliate: Exfoliants remove old, dry, dead skin cells, toxins and other deposits and allow new skin cells to surface.
Maintain a healthy diet: Like drinking lots of water, a special summer diet consisting of light and healthy food is equally important to ensure a cool mind and body. To keep your skin hydrated, eat lot of fresh fruits and green vegetables. Include fruits and vegetables like bitter gourd, spinach, cucumber, watermelons, oranges, cherries, plums and lychee to your diet.
Source-Medindia