There are many fields which can help you breathe better:
Hyperbaric Oxygen Therapy (up to 1h/day, followed by an antioxidant field, like Antioxidant formula or Glutathione)
HGF (or any field which has HGF incorporated, as it helps with stopping allergic reactions; search using keywords such as hgf or allergy or oxygen)
Pleurisy (accessible through/with Sapienmed Middle Tier Patreon) or Lung Restoration and Strengthening Ver 2.0 (it’s on Sapienmed YouTube Channel; Pleurisy includes this field)
The Air Revitalizer (Energetic Alchemy Channel)
Negative Ion Generator or other fields for negative ions
Environment fields/fields for the environment or Servitors (like the Environment Servitor)
Intercession fields, like Angelic Intercession or Alien Intercession or Devic Intercession - ask them to help you, I mean they have incredible powers…
Also:
https://forum.enlightenedstates.com/t/spleen-blood-oxygenator-patreon/72288
And others.