Few tips and suggestion to make your Holi safe and joyous...

• The best option would be to play with natural home made colours. Your skin and hair will feel tampered with the use of skin friendly natural products.
• If natural colours are not possible, then ensure a better quality of colours. Buy colours from a reputed shop or vendor.
• Make sure that your face is well creamed before and after the play.
• Apply thick coating of paint on your nails- both in fingers and toes so that they remain protected.(For Girls)
• Oil your hair well, so that colour doesn't stick on your hair and can be washed off easily later.
• Cover your hair. Make use of hat or caps to protect your hair from being coloured with hard-to-rinse dyes.
• Do not use permanent dyes. If someone has applied it on you, do not rub the face with soap immediately in order to get rid off it, especially when it is wet. Instead, use good quality cleansing milk for removal. 
• Do not drive if you are high on alcohol or bhang.
• Last but not the least .......Remember you also have police on your side and if any untoward revelers misbehave, you can make your complaint.