Welcome to HCM.
As Dr. Sadiq has mentioned its not a good idea to wear a CL which fell down and got dried up.It's better to dispose it off and buy a new one.
Now, either you have developed a severe allergic conjunctivitis
or an infective conjunctivitis.I am more concerned about your Cornea
,the transparent part of the eye as damage to this layer causes sensitivity to light.
So,stop wearing the CL even if your redness
is gone, get an eye examination done, make sure your Cornea is alright and then start resuming the CL wear. Since damage to the Cornea , if deep, causes an irreversible scar, I would suggest you not to start on any OTC eye drops and consult at the earliest.