Re: Recent diagnosed severe sciatica, help?
The docs will run a variety of physical tests, and after reviewing the MRI's and any other imaging you have had, will usually start with some conservative treatments first to see if those will work. They may do some diagnostic injections, and those may include cortisone/steroids as potential treatment. Sometimes they help people and sometimes they don't. If get nervous about things like that, you can ask them to sedate you for the injections. It means having a ride home and someone with you for the first day, but it can be worth it!
As long as the PT person knows what your issues are, they should be able to give you exercises that do not make your pain worse.
Surgery is always a last resort, and even herniated discs can heal without surgery depending on the severity of the herniation.
Make sure you follow any restrictions your doctors have given you. Don't over do things, and if something increases your pain, repeat it. Leave the heavy lifting for others, and try not to bend or twist if you can avoid it. Try keeping a pain journal of activities, pain level and type, and any particular activities that increase your pain level.
Hope this info helps you a little bit.