one must get anti tetanus serum(a.t.s) after an injury specially in the case of cuts because the cut portion is now exposed to atmoshphere and it is prone to infection caused by bctetria,fungus etc...
Depending on the injury. If its a bad sprain or and break, then keep the ice on it for a while. For minor injuries, there is no need to keep it on there too long
Your question is very vague, and therefore difficult to answer. Perhaps a look at this website might help you? http://www.emedicinehealth.com/eye_injuries/article_em.htmGood luck!