Thank you very much for contacting healthcare magic. For treatment of wheat allergy avoid that foods and antihistamines are helpful. For external hemorroid take following care. ... Avoid spicy foods and oily foods. Drink more water per day. Avoid constipation problem by taking high fiber foods like whole grains, beans,oats...etc. Avoid alcohol drinking and smoking. Avoid fatty food and junk foods Eat fresh fruits and green vegetables. Drink lemon water for relief of constipation problem. Bulk forming agent like psyllium can use in constipation. Avoid excessive straining at toilet. Anti-inflammatory ointment can use at hemorroids area. Mostly diet modifications give relief in hemorroid problem . I hope my guidance is helpful to you. Thank you very much.