Omega-3 fatty acids are associated with reduced inflammation in the colons of people with UC, and Omega-3 fatty acids are also recommended by most integrative LLMD's. So one thing to try is a fish oil supplement (enteric coated is best so it can get past the stomach and do some good where it is needed). Also, many with Lyme need the extra Vitamin D (in fish oil) to help support the immune system.
Also, you may need to try detoxing through skin - sweating - to reduce die-off symptoms.
I also agree with the others - Doxy is hard on the gut and you may need a different antibiotic that is less hard on the gut.
Chronic Lyme Disease, Chronic Bartonella (clinical dx only), Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, chronic Lymphopenia, etc.; G-Tube; Currently trying to wean off TPN.
Meds: Pulmicort, IV Ceftazidime, Heparin (to flush PICC line), Claritin, Domperidone, Colloidal Silver (used topically), probiotics, Milk Thistle, Ailanthus, homeopathy.