lol ok, well fist of all calling helllppp wont get you fare, in here or with plants, there is no quick fix or quick anything when it comes to growing plants
secondly, post a picture please, will not just make it much more easy for us to spot the problem (remember a pics tells a 1000 words) and give sound advice, but will, some how, also draw peoples attention in here.
and last, some more info is needed, Etc. where is the brown spots located ? and what strain, how old, what grow medium, what is the PH of your water, do you add nutrients aso
brown spots can be cursed by many things, but its most likely a deficiency of some sort, then the questions is if its curse by to little food or a wrong PH or lack of others stuff that help the plant in its nutrient uptake
to me with out knowing, with so little info and no pics, it could sound like PH problems that maybe lead to Mg and/or Nitrogen deficiency or if your plant is older/in flowering ? lack of Mg
but I have no way of telling with out more info and a picture ..