Generally, human beings have different types of feet. Some of them have high arch feet while others have flat feet. An ankle and feet specialist may be in a better position to help you know your feet type. However, you can still establish on your own by; stepping your wet feet on construction paper. Your imprint should help you understand whether your feet are flat or high arched.
I used this product exactly as noted on the label, for my brother's wedding and I was able to wear my 6 inch platform heels comfortably for 9 HOURS! I must note that these are shoes I have worn many times and never had a blister or anything, but I was able to wear them much longer! I also used it with 4 inch heels only previously worn once(for 3 hours and without the spray) and they were much more comfortable and able to be worn for 7+ hours.I will be purchasing another bottle! Thank you!
Add footpads: I then Frankenstein my own orthotics into every shoe, depending on the fit. Consider one of these: a very slim insert with a heel cup and slight arch (if you need arch support), heel cushion (for heel pain) or a foot “tongue” pad (use under the foot for cushion, or put on the underside of the top of the shoe to prevent sliding forward). A podiatrist can help you with custom inserts, or you can do as I do, which is buy them in bulk at the drugstore or online.  
Stilettos are cute but they are not suitable for every woman. Wearing them may make you wobble around especially if you are not used to walking in them. If you cannot do without heels, try to choose thicker and chunkier heels as they offer more support and are more comfortable. However, this does not disqualify you from rocking your beloved stilettos. Do it once in a while and learn how to walk in them appropriately.  

One way to make your heels more comfortable is to wear them in. Wear them around the house, wear them to run an errand, or even for a walk around the block before you wear them all night to a big event. To speed up the process, if your shoes are made from a sturdy leather material, you can even blow dry them! "The heat from the blow dryer can make it easier to break in an uncomfortable pair of heels", says Lexie Nicole, a part time pole fitness instructor. She suggests this to her students: 

Blast your heels with heat.[1] Heat is an effective way to soften a material and make it more pliable. Carefully warm your heels using a blow dryer or a small heater for about a minute or two. Watch how your heels react to the heat because certain materials don't do so well under heat for long periods of time. You can bend and twist your heels while they’re still warm. Or you can wait until they’ve cooled and put them on with a pair of socks to stretch them.
But you don't have to swear off high heels altogether. It's possible to make high heels more comfortable. Just pay attention to how much lift you're getting. “Two inches is my cut-off,” says Ward. “A heel below that height does not add significant stress to the metatarsals as the weight can remain distributed between the heel and forefoot.” This also helps you stay balanced (read: no wipe-outs) in your kicks, she notes.
Know your foot type. In my opinion, a podiatrist would be the best way to know your foot type and what’s going on. If you can’t run out to the podiatrist, there’s a couple of neat ways to see if you have a flat foot or a high-arch foot. Wet your foot and step onto a piece of construction paper. When you make an impression, it will show you how much your foot is flattening or how high of an arch you have. You can look at a person’s foot type and see why they are having pain.

Making sure that the leather is conditioned is one thing that you can do to help keep your shoes in tip-top shape. Canfield McNish also recommended making sure that all of your heels have non-slip pads attached to the bottom. You can buy these at shoe stores, online, at stores like Target and Walmart, or at your local cobbler. The pads help keep you avoid slipping, but they also help protect your shoes from premature wear.
High heel shoes are very common footwear for women. We wear it at work, in school, when we’re hanging out with friends, and basically everywhere. Sure, sneakers and flats are comfy but high heels just give us that much-needed confidence to do what we have to do. Admit it, wearing them sometimes cause pain and blisters and no woman is immune to that. It’s good that there are hacks we can do to lessen the pain. Are you ready? Here they are.
Keep silica gel packets in your shoes when they’re not being worn.[3] Have you noticed after purchasing a pair of new shoes those little white packets containing tiny clear balls inside your shoe box? Those packets contain silica gel which absorb moisture and keep your shoes from shrinking. Hold on to those packets instead of throwing them away and stick them in your shoes when you’re not wearing them. You can ask a shoe store associate for extras, if necessary.
Wear your heels around the house before a night out to get a feel for them. This is particularly helpful while breaking in a new pair of stilettos, as you can suss out where the shoes might rub. One way to deal with this is to put on thick socks with your shoes before a night out and blow dry the area where the shoes might rub for half a minute, which would help the shoe to expand and stretch. Another method is to fill plastic bags with water and place them in your shoes, then put them in a freeze. The ice will help stretch out the shoes, making those nasty rubbing blisters a thing of the past!

Consider a lower or more comfortable style. Choose a thicker and more stable heel like a platform, wedge, or chunky heel to provide more support and weight distribution. Shy away from pointed-toe styles if you have wide feet or toes, opting for round or almond-shaped instead. You can also buy heeled boots or heels with ankle straps to help support your ankles.[3]
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