Any help for sinus headaches which seem to be pressure related?

Aromatherapy. Inhaling the vapors of a mixture of pure essential oils through your nose is very helpful. Be careful to just inhale as they may "burn" your nose if you spill them in your nose.
One option. If you have ongoing sinus issues it may be time to see your physician or your otolaryngologist. An aromatherapy recommendation has already been made. Acupuncture can be very beneficial for congestion/ discomfort of both frontal and maxillary sinuses (but will not correct a problem that requires surgery).