Aerosol exploded into side of face, cut to head n bad swelling round eye n temple. Should I go 2 hospital even tho I feel sick but haven't been?

Laceration. The side of the head at the temple is a very delicate area where a slight trauma could cause a lot of internal damage. You may need to get x-ray or scan to be sure. You may need to have the laceration closed to give a better chance to heal with less scar. You should get it checked.