My hair is totally filled up with nits and lice.i am not having any chance to try different hair styles.so please help me to get rid of this problem?

Two options: I am unfamiliar with OTC meds that are available in your country. Would suggest: 1-talk with pharmacist about OTC products that are available 2-see your health care provider

See your doctor: Some lice are resistant to commonly used medications. You should see your doctor for a prescription.

Live: if OTC lice treatments like permethrin are not working ask your physician for Ulsefia it is very important to still use a nit comb and follow all precautions otherwise it is a difficult one to get rid of Short of having your hair cut

Treatment of lice: requires accurate identification of nits & / or lice. A pediculicide is usually used- OTC like Nix (permethrin) or RID or prescription meds like lindane or malathion. Work carefully through hair & remove individual nits. Purchase a special lice nit comb to aid you. Check for nits & remove as seen over the next 7 to 10 days. If there are nits after 7 to 10 days – a 2nd pediculicide tx may be needed.