How long does it take for a Bichon’s puppy coat to grow back after shaving?

After shaving a Bichon’s puppy coat, hair gradually starts growing back in about half a month, but full regrowth may take 2 to 3 months. When shaving, it is best to shave it all to avoid damaging the skin follicles and affecting normal growth; severe follicle damage may stop hair from growing back.

Shaving all the fur also exposes the skin and easily causes skin problems. To grow hair faster and better, supplement lecithin and egg yolk, and give appropriate exercise and sunlight.