My hair is straight and smooth. It's natural. But I still have some tips to keep it straight and smooth:

1. Let the hair dry naturally instead of using hair drier.

2. Using milk put on the hair 30 minutes before I shampoo.

It depends on your health. You should follow the doctor's advices.

You should go to doctor to check and receive some useful advices.

the bio you love most, i think :))