What to do if i've got drunk water which was contaminated with mosquito spray by mistakewhether this caused these allergies on my body?

What symptoms?: Depends on how much water you consumed and how much of the spray was in it, and what the spray contained - there are many different kinds of insecticides. In any case, it would not likely be "allergy" - which is an immune system reaction, but a toxic effect of the drug. Without knowing what symptoms you are having, nobody can say. Insecticides are nerve poisons, but it takes high doses to harm.