if there are any other survivors in your location that is, I live in a fairly remote, low population, area of the country, most out of towners would call it the middle of nowhere.so the distance to another group may be many miles many days travel, if one can get a signal to another group, IF they are in range and IF they have a medical person in their group one may be able to get some verbal advice over the radio, but that's probably the extent of any help- and its a big if, actual physical presence of some medic may be many years into the future, if at all.
it is a fact, well known in this area, that in the event of a really serious catastrophe, anyone living in this area will be on their own in terms of any outside help, this is a given thing if one lives in this part of the country, so self reliance would be self preservation should collapse occur.