<s>[INST] I have a mold and mildew allergy. About 10 days ago, my husband replaced an upstairs toilet. It took about two days but in that time, the large pipe was exposed. He put paper towels in the hole but I don t think it helped. I have COPD and asthma and since then I ve been feeling awful. Congested, coughing and my legs , especially, have been very weak. I was getting off the treadmill a couple s of days ago and my legs almost gave out. Can you help please? [/INST] Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Since you are already having asthma, this opened pipe caused acute worsening of underlying asthma which gives you these symptoms. So better to consult pulmonologist and get done clinical examination of respiratory system. You will need inhaled bronchodilators (formoterol or salmeterol) and inhaled corticosteroid (ICS) (budesonide or fluticasone). Systemic steroids are also given in severe cases. Oral combination of antihistamine (levocetrizine or fexofenadine) and anti allergic (montelukast) should also be given. Don't worry, you will be alright with all these. Hope I have answered your query. Let me know if I can assist you further. </s>