Hair and Nails

Q: What is the general ruling for a Muslim regarding disposing off his/her nails and hairs. 

Q: If a person shaves his moustache over the bathroom sink every morning, would this be OK even though the stubbles of hair will go down the drain? Or does he have to shave over a container to collect the stubbles of hair in order to bury them?

Q:

1. What should be done with the umbilical cord stump (clamp) after it gets detached from the baby?

2. What should be done to an extracted tooth?

3. How can the underarm hairs/ pubic hairs be disposed of? Can it be flushed through the toilet basin?

4. Can we despose of the nails through hand wash basin?

Q: Are chemical hair treatments like rebonding, hair relaxing, extensions permissible?

Q: Can women use an eraser for shaving unwanted hairs?

Q:

1. Are the sideburns regarded as part of the beard in Islam? Is it allowed for men to shave them?

2. While trimming one's sideburns, if a few hairs of the beard are accidentally cut (the hair of the beard being shorter than one's fist), will it be a sin?

Q: Is it permissible for a man to remove the hair on his legs?

Q: Is it permissible to allow another Muslim woman to wax one's legs from after the knee and full hands?

Q: Is it permissible to put eyelash extensions?

Q: If a man develops repeated abscesses on his private parts and the surgeons advise laser to remove the hairs around the private area permanently as the hairs contribute to abscess formation, would it be permisible to expose the private parts to male or to female nurses/doctors for laser? Since shaving with a razor is thought to increase the abscess formation.