（を):
イヤイヤして	4161	79.0%
イヤイヤをして	1108	21.0%

＝＝＝ katakana:
いやいや行って	725	26.9%
イヤイヤ行って	541	20.1%
嫌々行って	1432	53.1%

いやいや来て	272	45.3%
イヤイヤ来て	91	15.2%  <-- This is what I encountered
嫌々来て	237	39.5%

イヤイヤ期	17246	90.1%
いやいや期	1692	8.8%
嫌々期	197	1.0%

Encountered as katakana.  We have an entry イヤイヤ期.  Seems like イヤイヤ should be here.

I've edited the note on [2].  sankoku gives ~をする as an example, "prescriptively correct", but this seems more common without を, which made the note a bit misleading.

I agree with old comments that [1] and [2] go well as one entry, and certainly make understanding イヤイヤ期　simpler.

@@ -20,0 +21,4 @@
+<r_ele>
+<reb>イヤイヤ</reb>
+<re_nokanji/>
+</r_ele>
@@ -31 +35 @@
-<s_inf>usu. as 〜をする</s_inf>
+<s_inf>usu. as 〜(を)する</s_inf>

Probably not needed. It's virtually always written in kana.

@@ -33,7 +32,0 @@
-</sense>
-<sense>
-<pos>&int;</pos>
-<misc>&uk;</misc>
-<gloss>no!</gloss>
-<gloss>no no!</gloss>
-<gloss>not at all</gloss>

I think we can. Perhaps put 嫌々/嫌嫌 in the 否々 entry as sK.

With the exception of koj, my refs don't have the interjection sense for 嫌々, only 否々. Should we drop that sense from this entry?

@@ -24,0 +25 @@
+<gloss>reluctantly</gloss>
@@ -26 +26,0 @@
-<gloss>reluctantly</gloss>
@@ -31,2 +31,2 @@
-<s_inf>usu. as いやいやをする</s_inf>
-<gloss>shaking head in refusal (like a child)</gloss>
+<s_inf>usu. as 〜をする</s_inf>
+<gloss>shaking one's head in refusal (like a child)</gloss>