Hallux valgus devises- cheap, but helps.

Hallux valgus
A static foot deformity, a term denoting a deformity at the level of the medial metatarsophalangeal joint with valgus, i.e. outwardly directed, deviation of the big toe.

Treatment of hallux valgus can be conservative (non-surgical) or surgical, depending on the degree of deformity and symptoms.
Conservative treatment is aimed at relieving symptoms and preventing the progression of the disease. It may include:

correct footwear;
orthopedic insoles;
exercises to strengthen the foot muscles and massage;
medication (non-steroidal anti-inflammatory drugs and analgesics);
orthoses and bandages.
To choose a treatment method, you must consult a doctor.
Surgical treatment may include osteotomy - removal (resection) of protruding bone tissue, correction of the position of the bones of the fingers and feet.