Hi thanks for asking your question. Here you have constant headache, so first to rule out common cause like refractive error. Headache may be because of sinusitis.For it take simple paranasal sinuses x ray. Possibilities of migraine also.is associated symptoms of migraine present like flashes of light?? If you have migraine then prophylactic drug can be taken.like propranolol or amitryptiline like drug. But here is some non medicated alternative for you. Peppermint Oil smelling is helpful for tension headache. Basil Oil is herbal product that is best muscle relaxant. Buckwheat is also helpful. Muscle relaxation therapy and scalp massage also beneficial. Avoid stress. As far as soft spot on scalp concerned, detailed history needed.like colour of spot.whether it looks red or pus filled??or its acne like papules?? Thanks.