Which doctor to contact. Surgeon.

My sister was suffering with stomach ach and vomiting as a result we got her to Brookfield hospital. It's 3 days now she have gone through multiple problems with skin allergy, bloodshot eyes on the third day. So many like blood test, urine test, stool test, CT scan have been takes during her stay and X-ray was also taken. Yet they were not clear about the infection. They started with a pain killer when she is here and iv fluids continuously going on in the parallel. The patient got into a bad skin allergy and they recommended for a cream and stoped the medicine and started an antibiotic for vomiting sensation and stomach ach I believe. 2 days down she is carrying an eye infection. They started with some eye drops to compensate that infection. Now I'm discharging her and need recommendation to which doctor I have to go attend. Is it and eye doctor or the general surgeon..