question: Sir, I have been diagnosed with sarcoidosis with erythema nodosum symptom and have been taking omnacortil for last six months and stablised at 7.5 mg a day. This is the third relapse of sarcoidosis in three years and that is my doctor has advised 7.5 mg for another 6 months. Do you suggest to use an air purifier in my bed room to avoid another relapse?