The exposures are unfortunately, cumulative. I had no option than to stop attending church. Those weekly exposures can make MCS worsen. In the meantime, do you take Vitamin C, Quercetin/Bromelain or glutathione? These help chemical sensitivity and attenuate reactions. Before church you could take 500 mg of C, and then after church, try 500 mg. more. The C helps mitigate the lung inflammation and clear the chemicals from your body. The best glutathione is Thorne SR. 1 or 2 daily. The Quercetin/Bromelain (1) daily. If it causes itching, stop taking it as some people are allergic to it. I do fine. These are my life-savers, along with a Thorne mineral supplement which helps the body produce glutathione-the body’s master antioxidant responsible for detoxification.