Generally, it is not possible to correct bunions without surgery.
Bunions are a common problem that are associated with an enlargement of the medial side of the first metatarsophalangeal joint and a lateral deviation of the hallux. The cause of bunions is generally a genetic predisposition (hereditary), abnormal foot biomechanics and the use of poor fitting footwear.
There are some things that can be used such as the bunion corrector or doing bunion exercises. They can be very help at dealing with the symptoms and pain that can sometimes develop inside the joint. They are not so good at correcting bunions. They can help improve the angle of the big toe joint, which is good, they are not so helpful at making the lump of the bunion go away.
There are some who claim that manipulation of the joint can help. They can show before and after photos.However, there is no research evidence that this is helpful and is based on isolated anecdotes.
There are no shortage of a lot of nonsensical claims online about bunion cures, most of which will not work, so be careful what you read. Surgery is typically the best way to “cure” bunions.