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The stomach problem may not be related to the cut. It would be best to have taken TT injection the same day of getting the wound. Incubation period
is around 6-13 days commonly. Drink plenty of water. Keep well hydrated. Could be stomach infection
due to contaminated hands or food. Eat yoghurt, curds, fresh fruits and green leafy vegetables. If you feel sensitive to light, weakness, irritability you should be taken to Doctor immediately. Better to get TT shots as soon as possible to keep updated. Don't take much tension. Try to be cool. Be careful next time.