Tension headche want can I do besides cold compressions on the back of my neck?

Warm compresses. Cold tends to make muscles tighten more; moist heat increases blood flow and decreases pain and spasm. Mild range-of-motion exercises help stretch & relax the muscles. Nsaids (aleve/motrin etc if tolerated by stomach ) can reduce pain & inflammation. Do not mix with blood thinners) magnesium (low dose) can help relax muscles. Therapeutic massage is helpful.
Tension Headaches. Please first see doctor to obtain a diagnosis. Then consider biofeedback or clinical hynosis (www.aschn.et). Peace and good health.