Begin the detangling process while you are still in the shower. Always wash your hair with a moisturizing shampoo. Rinse and follow-up with a moisturizing conditioner. Don't skimp on the conditioner. Slather it on. Medium "s" curls can use all the conditioning they can get.
Start the detangling process while the conditioner is still on your head. Run a wide-toothed comb through your hair, starting from the ends of your hair and working your way up to your roots. Unless you want to end up with a drain full of hair, never start from the root and work your way down.
Rinse your hair after you have removed all the knots. But don't be fooled! The detangling process is not over, yet. Surely some knots will return after rinsing, so get ready for phase two -- more detangling! This time, it's outside the shower.
Squeeze your hair after rinsing. The idea is to get as much water as you can out of your hair. Squeeze, squeeze, then squeeze some more. Wrap your hands around your type 3 locks like you are wringing out a rag. Wrap your hair in a towel and step out of the shower.
Pat your hair dry with the towel. Please, please, please don't rub. Rubbing with a towel is just asking for trouble. It's friction on your curls that they just don't need. Unless you want a head full of fuzzy, frizzy curls, wrap the towel around your hair and press your palms against your head, removing the excess water.
Spray your hair with a leave-in conditioning detangler, and get ready to detangle again. Don't be shy with the spray. I know you just squeezed out the water, but you will need to dampen your hair again with the leave-in.
Comb your hair once again with the wide-toothed comb. Don't forget, start from the bottom and work your way up. When all tangles are gone, you are ready to air dry. Why air dry? Because it's better for your hair. Blow-drying sucks out moisture that your medium curls need in order to stay smooth.
Avoid heat styling at all costs when you're a type 3. If you absolutely must use the blow dryer every now and then, set it to low heat.
Save yourself a lot of headaches in the morning by wrapping your hair before you go to bed at night. Sleeping in a silk cap will reduce friction as you toss and turn on your pillow and also reduce tangles and frizz.
Be gentle. Do not tug or pull on your curls as you detangle. Not only will you give yourself a headache, you will also cause breakage and split ends. Work slowly, working out each knot with the teeth of the comb.
Never use a brush on your medium curls.