paws turning pink

My dogs paws are turning pink and a bit swollen. It doesn’t bother him and he’s no licking at it. There are some bumps forming on the bottoms of his paw too.

Hello!   I'm afraid that these statements raise more questions than answers.  What is turning pink exactly - which bit of the paw -and what colour was it to start with?  Are we talking about the underside, or the webs, or the skin between the toes, or somewhere else?  Is it just one place, or widespread over just one paw, or both paws, or the joints?  What are the bumps like?  How old is the patient?  There are many conditions affecting the skin of the paws, some of which are itchy - skin allergy, fleas, mites or a foreign body - although not all dogs show very clearly when they are itching. The main sign of itchy feet is licking.  Some dogs lick in secret and detective work is needed;  on white dogs, over-licking can be seen because of the brown staining left behind by saliva.  Other conditions - including cancer (unusual), bacterial or fungal disease, hormonal change or demodex mites - may not be itchy at all.  The short answer is that this paw ought to be seen by a vet because these feet don't sound normal for your dog.  The vets will start to identify the main features and possible causes of them.  It can take a few tries to rule things in or out in order to get to the bottom of a skin problem.  Wishing you the best of luck- do please let us know how you get on

It also just occurred to me that you didn't specify a time-scale.  Some allergies involve the rapid swelling of paws.  If this is happening quickly, then please get the situation triaged by an emergency vet.