1.Take care of  your ears from firecrackers which produce loud noise.If you keep cotton balls in your ears,
  you can reduce the sound by 30 sound wave.

     2.The hearing loss caused by fire crackers can be temporary or    permanent .very high intensity sounds can even burst the ear drum which can be fixed with surgery but damage to the inner ear(cochlear)  generally cannot be fixed.
 
   3.Breath  smoke from firecrackers can cause severe sensitivity of the air   passage ,ie,nose,throat lungs and  can result into infection ,even condensation of asthma and allergic .
   
    4.Take care of  your eyes from smoke as it can cause eye  condensation.
   
     5.Take care of your skin and face from direct exposure to the fire.