Bl-Fin 250 Tablet belongs to a group of medicines called antifungals It is used to treat a wide range of fungal infections of the skin and nails, including ringworm. It works by killing the fungi that cause the infection. Bl-Fin 250 Tablet can be taken with or without food. You should take it regularly as prescribed by your doctor. Taking it at the same time every day will help you to remember to take it. The dose and duration of treatment will depend on what you are being treated for. Do not stop taking it until you have finished the complete course, even when you feel better. If you stop taking this medicine too early, the fungus may continue to grow and the infection may return or worsen. This medicine's most common side effects include rash, headache, nausea, and abnormal liver enzyme. These are usually mild but let your doctor know if they bother you or last more than a few days. Before using it, you should tell your doctor if you are allergic to any antibiotics or have any kidney or liver problems. You should also let your healthcare team know all other medicines you are taking as they may affect, or be affected by this medicine. Pregnant and breastfeeding mothers should consult their doctor before using it. Your doctor will monitor your liver function regularly during treatment.