Teething

Tee

My son is 5 months and seems like he’s teething pretty badly I’ve tried gels but he just won’t open his mouth for me to put it on his gums, same with the powder and calpol. It’s heartbreaking just wondered if anyone knows of any drops or anything like that to help him? Don’t know if it’s a thing but I give him his vitamin D in drop form so just thought I’d ask the question