Hello Thank You for contacting HCM. Always use mask when dealing with such products. They may cause problem in long term because of recurrent insult. Blood came due to severe insult to mucus membrane. I would suggest you following things: Take Diphenhydramine + Dextromethorphan for cough. Take hot water in a cup, add 1 table spoon salt in it. Perform gargles (mouth wash) with it three times a day for at least 3 days. It will give soothing effect. Take boiling water in a pot, put your head over the steam and cover whole with a sheet. Take deep breaths in it.(Avoid getting closer else it might cause burn). Do this twice a day. Avoid fumes for at least a week. AVOID: Chilled water Drinks Spicy food Report to hospital if: Condition remain same after 2-3 days Any unusual symptom appears Condition deteriorates. There is difficulty in breathing. Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. Wishing you good health.