Just make absolutely sure you stock up on healing potions and ethers, and then completely restore both your mana and your health before heading down. Once you're there, clear all the monsters except for the big boss man, and then heal up again. Take this time to make absolutely sure you have your best gear on, and that you're fully healed, and then take him on, keeping a healing potion at the ready just in case you're hitting low. After that, congratulations, you've just cleared The Enchanted Cave without using the Escape Wings once.
Believe it or not, it actually is possible to clear the entire dungeon, collecting all the treasure, grabbing all the gold, defeating EVERY SINGLE monster, without using the Escape Wings once, although you have to have beaten the game first. Once you acquire the Blade of the Chosen, you can clear probably the first 40 or so levels without even getting harmed, due to it's ridiculous damage rating. After that, it's the occasional 10 or so points of damage, nothing that can't be cured by a minor heal. It starts getting a little more difficult once you get into the last 10 levels, with level 98 probably being the hardest. Level 100, provided you have a good armour rating, isn't actually that difficult.