Hi, Based on the history you have shared, these symptoms can be due to allergic rhinitis or allergic spells to plastic tubing which you received or due to mask though rarely can trigger allergies in individuals who are prone to contact dermatitis or anaphylaxis. Meanwhile, a possibility of the mask being contagious and spreading the infection may also exist. In any case, antihistamines like Cetrizine or loratidine along with decongestants may be helpful. Antibiotics are not needed at this moment. Monteleukast or mast cell stabilizer to reduce the severity of allergic attacks may be used for the next few days. OTC analgesics like acetaminophen can be used with steam inhalations to feel better. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Saddiq Ulabidin, General & Family Physician