I make a powerful potion which is basically made of a lot of garlic (ten or so cloves, often of old garlic no longer suitable for cooking), a good sprinkling of cayenne powder, all mixed into an old (full) watering can, then left in the sun for a week or so. The resulting potion should then be strained through a sieve. I use it as preventative, cure and even as a growth stimulator. Watch which way the wind's blowing, though! This stuff reeks!