When dealing with a headache, try boiling one cup of apple cider vinegar and one cup of water in a pot. Pour into a heat proof bowl and put on the table or other safe place that you can lean over the bowl and cover your head with a towel. Inhale the steam for a few minutes to bring some relief.
The warning on mine says not to use prior to 4 months of age. My son was in his Jolly Jumper from 3 months. The directions of use are that if they can confidently hold up their head then they are fine.
a regular bouncer that they sit in that vibrates and may have music they can go in early at least i did with my kids.i just made sure there head was supported.thats what the bouncers and swings are made for to comfort and soothe baby.but the johnny jump ups have to wait until about 6-8 months i beleive.