Ozone injection (ozone nucleolysis) is sometimes used for disc-related back pain, including L3–L4 slip disc, but it is not a guaranteed long-term solution for everyone it can reduce pain by shrinking the disc and decreasing inflammation, and some patients do get relief for months, especially in mild to moderate disc bulges however, results are variable, and it does not repair the disc or cure the condition permanently side effects are uncommon but can include temporary pain flare, infection, or very rarely nerve irritation if not done properly nerve damage is rare when performed by an experienced spine specialist under imaging guidance It is best considered after failed conservative treatment and before surgery, and you should discuss realistic expectations and alternatives with a spine specialist before proceeding

Long term result are not there