Be sure to follow the dosage directions on the bottle when taking pain medications. (checkpregnancy.com)
If its the radiator try using conditioner / sealant (follow direction on bottle) or replace radiator. (mechanics.stackexchange.com)
The best product I have found to used on them is a product by Bayer called three products in one rose and flower food liquid (do not buy grandular) it is a fertilizer fungicide and insecticide all in one follow directions on bottle I promise you your plant will look awesome (theinspiredroom.net)