Bunions are a common problem of the great toe joint in the feet which can be due to a mixture of an inherited predisposition and using footwear that presses on the great toe or hallux. The only real efficient way to get rid of bunions is with surgical procedures, however you can find devices described as bunion correctors which could be looked at.
Bunion correctors are night splints or brackets which you wear on the foot overnight with the aim to correct a bunion. They work by keeping the great toe in a reduced valgus placement in order to straighten the toe in order that the bunion is not as bad as just what it was before and the associated hallux valgus is improved. The bunion correctors can just be put on overnight because there is not going to be enough room to fit them in to the shoes and they're not exactly designed for walking. There are many less beneficial gadgets which you could wear in the shoes in the daytime and so are a good option to help you preserve the nighttime progression.
These bunion correctors may take quite a long time to work as you are referring to modifying the alignment of bones which is likely to take a while. The other problem is that you place the foot back into shoes that might put force on the great toe back in the opposite way during the day time if you are not using it. Children who have on braces or retainers on their teeth to modify the position of the teeth really should wear them for a reasonable length of time to get an and kids bones usually tend to be remolded more easy. In adults trying to remold the bones of the foot is likely to be much harder and take a whole lot more time. Because of this bunion correctors are likely to be a longer term therapy and instant results to fix the bunion are not likely to come about.
The research evidence is that these kinds of bunion correctors could help the angle of the great toe or hallux by a couple of degrees after a few months of usage. They are in particular beneficial clinically to help you manage some of the soreness which can happen within the big toe or hallux joint with bunions.