Makes internal radiation sources also use apply_effect(), by utilizing the ability to ignore radiation protection.

code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Dispenser.dm

@@ -253,7 +253,7 @@
 			if(prob(5))
 				M.antibodies |= V.antigen
 				if(prob(50))
-					M.radiation += 50 // curing it that way may kill you instead
+					M.apply_effect(50, IRRADIATE, check_protection = 0) // curing it that way may kill you instead
 					var/absorbed = 0
 					var/obj/item/organ/diona/nutrients/rad_organ = locate() in M.internal_organs
 					if(rad_organ && !rad_organ.is_broken())

code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Food-Drinks.dm

@@ -1166,7 +1166,7 @@
 
 /datum/reagent/ethanol/vodka/affect_ingest(var/mob/living/carbon/M, var/alien, var/removed)
 	..()
-	M.radiation = max(M.radiation - 1 * removed, 0)
+	M.apply_effect(max(M.radiation - 1 * removed, 0), IRRADIATE, check_protection = 0)
 
 /datum/reagent/ethanol/whiskey
 	name = "Whiskey"

code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm

@@ -344,7 +344,7 @@
 	scannable = 1
 
 /datum/reagent/hyronalin/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.radiation = max(M.radiation - 30 * removed, 0)
+	M.apply_effect(max(M.radiation - 30 * removed, 0), IRRADIATE, check_protection = 0)
 
 /datum/reagent/arithrazine
 	name = "Arithrazine"
@@ -357,7 +357,7 @@
 	scannable = 1
 
 /datum/reagent/arithrazine/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.radiation = max(M.radiation - 70 * removed, 0)
+	M.apply_effect(max(M.radiation - 70 * removed, 0), IRRADIATE, check_protection = 0)
 	M.adjustToxLoss(-10 * removed)
 	if(prob(60))
 		M.take_organ_damage(4 * removed, 0)