My son is 22 yrs old. He is suffering from oral ulcer (bayi hunnu / hugulu). Recently when we got his blood checked, we came to know that his hemoglobin value is 17.3 gm/di. He does not smoke / no bad habits. No much stress or strain. My question are: 1) what is the reason for higher hemoglobin value? 2) what is the effect of higher hemoglobin value on body? 3) whether higher hemoglobin lead to oral ulcer? 4) how to bring hemoglobin to normal value? 5) what is the remedy for oral ulcer?