Yes, your symptoms suggest an allergic reaction, such as hives, or a food sensitivity like gluten intolerance. To relieve the itching and bumps, you can take over-the-counter non-drowsy antihistamines like cetirizine, fexofenadine, or loratadine. Applying cool compresses or calamine lotion can also soothe the burning sensation. Since this happens consistently after eating, please avoid self-treating long-term. I highly recommend keeping a food diary of what you eat and consulting a doctor or allergist. They can perform simple tests to safely identify the exact trigger and help you manage this comfortably.