medical treatment for foreigner student wife

[EP]

Did you take an insurance before you came here?

[interleukin]

Is your husband getting a salary and paying taxes? In that case, he may be in the KELA system (or at least eligible for it) and you may be able to register there as well (it is not certain, you need to find out). If not, you hopefully have some kind of travel insurance (you probably had to get one to get a residence permit here).