Blood spots in mucus when blowing nose. metallic smell and taste in mouth with small headache, could this be sinus related?

If these symptoms followed a head cold from a week or so ago, they could be from a sinus infection at this time. Keep the sinuses draining with gentle nasal irritations using very clean warm salt water or ocean nasal spray. Steam inhalation can also be used. Tylenol for headache relief. If symptoms persist or worsen, appropriate oral antibiotics are prescribed.