It is easy to get cured It is hard to be careful, and many tourists do get sick, but you can get help. The smart thing to do is head to the doctor at the first sign of sickness.
Common symptoms are diarrhea, nausea, vomiting, fever and stomach cramps.
Hepatitis can also cause yellow or orange skin, eyes, or urine. Puerto Morelas, Playa del Carmen, Puerto Aventuras and Tulum all have easy to find doctors. Outside of Cancun, Playa del Carmen has the widest selection of medical services. They are used to dealing with tourists, and even if you don't speak Spanish they will try to help you. Both of them will want to give you a shot, even for an earache.