Certain foods can worsen hives, including histamine-rich foods like aged cheese, nuts, shellfish, and alcohol. Food additives, such as artificial dyes or preservatives, may also trigger flare-ups. Keeping a food diary can help identify culprits. For treatment, cephalexin capsules wholesale offer cost-effective antibiotics if hives stem from bacterial infections, though consulting a doctor is key. Avoid known allergens and consider an elimination diet to pinpoint triggers. Stress and heat can exacerbate symptoms, so manage these alongside dietary changes. Always seek medical advice for persistent hives to ensure proper diagnosis and treatment.