Help! nute burn while flowering

ok my plant is 23 days into flowering, i gave it miracle grow 15-30-15 1/4 the amount and the next 2 days i saw nute burn on the leaves, so i flushed it down and trimmed the brown burnt spots on the leaves. 3 days later my plant continued to burn so i flushed it again, and i made sure it drained nicely. so my question is will this slow down the flowering process?
is there anything else i could do to save it?

what part of the plant..lower? if it is then its supposed to 'burn' and fall off eventually..If you see some yellowing or 'burning' in the flowering stage it just means that your plant is taking energy from the leaves and concentrating more on the flowers so what you see is normal..flushing was a good idea anyways though..

Hope this helps some, just saw it was unanswered so i though id try n help a little bit..GOOD LUCK!

lower part is more burnt, the earthquake knocked one down but the top leaves have burns on the edges, but yes flushing does help it stop spreading. i flushed again today and everything seems fine.. its the mg which is messing everything up!