Hello. Thanks for asking from HCM.
I can understand your concern. As you are still having pain at injury site, it needs evaluation.
Feel it for any swelling, raised temperature at local site. It could be due to infection. Sometimes pus collection can occur at injury site in open wound.
For management, wound must be cleaned and pus must be drained. Antibiotic course like co-amoxyclav therapy will be given to you to cure infection. You should
consult doctor for wound dressing and antibiotic therapy.
Another cause can be due to underlying bony injury like frontal
bone fracture which got missed. It can be confirmed by
CT scan of head.
In case of fracture, you need rest. You can take painkiller like
Diclofenac sodium for relief. Skull bone fracture heals on its own. You can apply Diclofenac gel at pain site to fasten relief.
Hope it will help you. Thanks. Take care.