Allergic to chapstick? Swollen upper top lips & really red?

So I put on blistex about 3 times yesterday. On the 4th time lip top lip got huge, swollen, fat, itchy & a fine red line ppeared. So I put some cortozone on it. It happens to me ALL the time in the summer and I look so bad ugh. Then im like addicted to vaseline and its done my skin good ever since ii was little, but when I put some on my lips because, ya know, I was allergic to chapstick, it started to burn? So I rubbed it off. Any way I can get rid of the swollengness? Or home remidies? Im not going to get an allergy test or buy stuff to put on my lips for $15. Thanks for your concern & time ! :3) p.s (that 3 represents my FAT top lip) -.- smh. OH and it gets really itchy,red and blotchy so I covered it up with makeup