my lip fever blister is radiating pain down my chin, to cheek & even ear. it developed on Mon (4 days ago) from the sun, has had normal course of healing on the surface, but pain will not go away. i'm taking l-lysine, tylenol, topical oinments etc. but nothing is helping. i get them about 2-3 times a year & this is just not typical for me. should i have it looked at or try different meds?