The Pain in head too can be because of some dental cause.Moreover she most probably has bleeding gums.You can visit a dentist for clinical examination and management.

Kindly consult a medicine doctor as you are telling me that pain is in head of the patient,,if the pain had been there in the teeth,then I would have suggested you a remedy.

Dear Sir Definitely your mom needs a dental evaluation for checking the status of gums, any pockets in the gums, Or any dental cavity as she has headache . Dentist will evaluate even if any flap surgery has been done in past. Depending upon the diagnosis. Deep Scaling n currettage for cleaning of gums. Root canal treatment will be advised.for head ache is any deep cavity is there With necessary medicaments and maintenance part.