The best bet is simple direct pressure and bandages. You can also use cold to contract the vessels. Don't drink before the procedure or take aspirin or anything else that thins the blood. Being in good heath goes a long way as well. Another option is silver nitrate and its equivalents.
Silver nitrate is available at many pharmacies and first aid or sports medicine suppliers.
Be careful as silver nitrate can permanently stain the skin. Sutures are also available through first aid and sports medicine channels, but should only be used if you are competant to do so. If you are doing a procedure that requires sutures, practise suturing a chicken first. The availability and legality of surgical supplies varies a great deal from region to region. It should be noted that different suppliers may have different policies.