DS is 12 weeks and EBF. All was fine for the first few weeks but for about 6 weeks now he has had vv loose and often mucous-y poo, plus rash that flared when feeding. Weight gain was initially fine but he has now dropped a centile so I am concerned. The HV (and I) suspect an allergy - GP didn’t really give a shit but has reluctantly referred to paeds. I excluded dairy over 4 weeks ago (no difference), and eggs over 2 weeks ago (improved rash, but tummy remains bad).
While I wait for the referral - should I try also excluding other allergens eg soy? Hold my nerve with these two? Try something else entirely? Any wisdom appreciated!