Pain reliever test?

Here is my case, I know I allergy with Pain Reliever becaue every time I take them my body hurt a lot cant open my eyes but I don't know which exactly which ingredient. Do anyone know which kind of doctor I have to go to test so next time I can avoid taking the worng pain reliever? Thank you

Immunologist

They inject each one under your skin and see what reacts

He can actually test you for anything

The first answer is how allergests test. Here is an alternative to pills. (I use chiropractor and massage therapist).

Much pain is from muscles below is an example of what may help (based on headaches).
Begin with a couple swigs of molasses or a couple of bananas daily - magnesium (which regulates many things in the body) and potassium (a needed building block for muscles).
Drink at least 1/2 gallons of water per day. Running a body low on water is like running a car low on oil is the analogy the head of neurology at UCDavis told my husband about 10 years ago.

Now to the cause - muscles - your back, neck shoulders and head have tender spots. They are knots in the fibers of the muscles called trigger points. It makes the muscles tight which makes them press on nerves and other things causing the pain.

The cure - start with a professional massage, you will also want to go back over any place you can get to 6-12 times per session up to 6 times per day rubbing (or lightly scratching on your head) every where that is tender until the knots go away. The place where the skull connects to the spine press up under the edge of the skull (to get to those muscles).

For more information read The Trigger Point Therapy Workbook by Davies. It teaches what to do and where the pain comes from.