@EventHandler
    public void onPlayerPainkillerInteractEvent(PlayerInteractEvent e){
        Player p = e.getPlayer();
        if (p.getItemInHand() != null);
            if (p.getItemInHand().getType() == Material.FIREWORK_CHARGE){
                if (e.getAction() == Action.RIGHT_CLICK_AIR || e.getAction() == Action.RIGHT_CLICK_BLOCK){
                     p.playSound(p.getLocation(), Sound.ZOMBIE_INFECT, 2, 1);
                        if(p.getItemInHand().getAmount() > 1){
                            p.setItemInHand(new ItemStack(p.getItemInHand().getType(), p.getItemInHand().getAmount() -1));
                            } else {
                            p.setItemInHand(new ItemStack(Material.AIR, 1));
                            }
                        p.addPotionEffect(new PotionEffect(PotionEffectType.CONFUSION, 140, 1));
                        p.addPotionEffect(new PotionEffect(PotionEffectType.SLOW, 410, 1));
                        p.addPotionEffect(new PotionEffect(PotionEffectType.REGENERATION, 410, 2));
                        if (p.getInventory().getItemInHand().getType() == Material.FIREWORK_CHARGE)
                        {
                            e.setCancelled(true);
                        }
                }
            }
    }
}