Dizziness and vomiting on the second day after taking birth control pills can be relieved by taking vitamin B6 orally. In addition, the diet should be properly regulated, for example, you can eat easy-to-digest food to reduce the burden on the gastrointestinal tract, will also reduce the corresponding symptoms. Dizziness, vomiting and nausea after taking oral contraceptives are mainly caused by the side effects of contraceptives, which can be taken after meals. Contraceptives taken before and after meals do not affect absorption, and taking them after meals will reduce the corresponding gastrointestinal reactions. When taking birth control pills should also pay attention to, if it is a short-acting contraceptive pill, take it every day, it is recommended to take it before going to bed and eat a little something before taking it to avoid nausea, dizziness symptoms. If the symptoms of dizziness and nausea are severe, it is likely that the pill is not suitable for contraception and other methods of contraception can be used.