If anti-streptococcal O is elevated, spicy, stimulating and warm foods should be avoided. Elevated anti-chain O suggests that the body is infected with group A beta-hemolytic streptococcus, and mild patients may not have any discomfort, while severe patients may have fever, sore throat, joint pain, weight loss, loss of appetite and other manifestations. Generally speaking, patients should avoid eating spicy and stimulating foods such as onion, ginger and garlic, as well as warm foods such as seafood, beef and mutton, and should not drink alcohol. At this time, should eat vegetables, fruits and other foods rich in vitamins and easy to digest, is conducive to the recovery of infection. However, it should be noted that the anti-chain O changes slowly, if the infection has been eliminated, the level of anti-chain O can still be in an elevated state, at this time the patient can maintain a normal diet. Therefore, once the anti-chain O is found to be elevated should immediately consult a doctor, under the guidance of the physician to determine what period of time the disease is, and targeted dietary adjustments.