Which Specialization Doctor Should Be Consulted For Severe Depression?

Which specialization doctor to consult for patient with suicide attempt history? One of my colleague (female 26 yrs unmarried) attempted suicide due to some family issues by drinking some floor cleaning liquid a year and half ago. Fortunately we took her to a local hospital in her village on time and they were able to save her. They cleaned her stomach buy inserting tube through her nose and sucking the content in her stomach. But during that process she started bleeding through her nose and they had to stop the procedure immediately. Doctors said that she is out of danger but some of the floor cleaner liquid which she took remains in her stomach. At that time the liquid was also absorbed into her blood stream and showed positive in her blood test report. She was also on her periods at that time. After this incident she never took care of her health properly and didn t visit any doctors for further tests. Even now she says that she always feels weak and cannot stand for 5 mins continually as her legs starts paining. Around 8 months ago she was again admitted in hospital for food poisoning (food was taken from a local unhygienic shop). 6 people ate the same food and all (office buddies) where admitted in the same hospital. While the rest 5 got discharged in 24 hrs, she alone was in treatment for 3 days and then discharged. The doctors told that she was affected severely by food poisoning than others may be due to the previous incident. She was in her periods at that time again. Now the question is - We would like to test her to know whether she carries any side effects because of the initial incident and for any permanent internal damage to organs. Also we want to ensure that she will not have any problems in the future to her health & bearing children normally. We have decided to take her to a master health check up once and proceed according to the results. We would additionally like to know what specialization of doctor we have to approach first to consult. Also it would be great if someone can give us an idea of what kind of treatment would be provided based on my description above. Please advice. Thank you.