there is a product, called K.I.D.S by Homeocan, the formula "colic" is almost an instant gas reliever, it also takes care of tummy pains associated with gas. my baby didn't have colic, i'm sure you'rs doesn't either - but this product, wow is all i can say! it literally saved my life in the first few months
anyway if you have a natural food store close to you, see if you can find it. give it to him before a feed & i promise you will see burps immediately after
here is a link for the box:
http://www.healthatyourdoorstep.com/catalog/item/4507669/4732267.htmthe ingredients work like this...
THERAPEUTIC INDICATIONS:COLOCYNTHIS: Relieves baby’s violent intestinal colic pain, agitation and irritability. Also helps dispel abdominal gas and soothe nausea and vomiting.
MAGNESIA PHOSPHORICA: Recommended during acute colic attacks with violent cramps appearing and disappearing quickly.
CHAMOMILLA: Indicated in cases of acute attacks of gastralgia, flatulent colic with fetid gas and eructations that smell like rotten eggs. Stomach ache. These symptoms are generally accompanied by anger, nervousness, agitation, hypersensitivity and bad humor. Feel improvement by applying warm compresses.
DIOSCOREA: Excellent remedy used for acute intestinal spasmodic attacks with strong pain.